AMD vs Intel - please convince me....

imported_illusio

Junior Member
Dec 16, 2005
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0
Folks,
I have been out of the hardware game for a year or so and I'm looking for convincing arguments as to why I'd buy an Opteron with DDR over a high-end P4 running DDR2. I'd be using it 90% for games, 10% for work and want a quiet, powerful, stable system.

What I'm evaluating (either will be powered by at least a GF 7800 GT)

AMD Opteron 148 or 170
w/ eVGA 133-K8-NF41 (comes free with their 7800GT video card)
2 x 1 GB PC CORSAIR XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200)

or

Intel Pentium 4 660 Prescott 800MHz FSB LGA 775 EM64T (2 MB L2)
ABIT AW8-MAX or ASUS MB P5WD2 Premium
2 x 1 GB mushkin enhanced DDR2 667 (PC2 5300)

Please help me decide! Your opinions are greatly appreciated!
 

berat556

Junior Member
Jun 2, 2005
24
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0
Go AMD since for gaming it is the reigning champion, if I may ask... Why are you using opterons, since they are not optimized for gaming. I would suggest the x2 since multitasking is the future also if you want proof just go browse the scores at futuremark (3dmark05) to see how much of a difference amd makes when you compare processor at the same price.
 

ribbon13

Diamond Member
Feb 1, 2005
9,343
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Originally posted by: berat556
Go AMD since for gaming it is the reigning champion, if I may ask... Why are you using opterons, since they are not optimized for gaming. I would suggest the x2 since multitasking is the future also if you want proof just go browse the scores at futuremark (3dmark05) to see how much of a difference amd makes when you compare processor at the same price.

Tell me the differences between Venus and Toledo cores in detail or kindly keep the field fertilizer to yourself.

Welcome to AnandTech OP. This chart speaks for itelf
 

imported_illusio

Junior Member
Dec 16, 2005
3
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0
It sounds like I'd be happy with the San Diego 3700+ for the time being; I like its price/perf ratio. Finally, something worthy of my 2405FPW!
 

Sunrise089

Senior member
Aug 30, 2005
882
0
71
Originally posted by: berat556
Why are you using opterons, since they are not optimized for gaming.

Frankly this is total crap. The s939 Opterons and the Athlon 64s are equally fast at gaming when cache is equal, and normally the Opteron's OC better.

OP - AMD is 100% the way to go for you, check out pretty much any benchmark other than maybe Intel.com. Also, if you want the San Diego 3700+ be SURE to check Opteron 148 prices, its the same chip basically and as of earlier today the Opteron was cheaper, though prices fluctuate a lot.
 

TheRyuu

Diamond Member
Dec 3, 2005
5,479
14
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This is:
a.) a Flambait
b.) Been discussed tooooooo much.

Use the dam search button!
 

Zap

Elite Member
Oct 13, 1999
22,377
7
81
Originally posted by: illusio
I'm looking for convincing arguments as to why I'd buy an Opteron with DDR over a high-end P4 running DDR2. I'd be using it 90% for games, 10% for work and want a quiet, powerful, stable system.

Games = Athlon 64/Opteron is best in benchmark after benchmark using either synthetics or actual gameplay.

Work = For most people this is web browsing and office apps, and anything you can buy right now will do the job easily, even the $299 after rebate with coupon Dell Celeron specials.

Stable = Any properly built/configured system that doesn't have defective hardware or any infections and has the proper drivers installed should be stable no matter what CPU is used.

Powerful = Since you are mostly gaming, either platform should work fine regardless of benchmarks. The real deal is that gaming performance these days are dictated more by video card than by CPU, so though CPU is important, video card is primary.

DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules. DDR is lower latency than DDR2, plus AMD's integrated memory controller gives it a definate advantage even using "antiquated" technology, so don't sweat this detail. Besides, depending on when you end up buying, sometime supposedly early next year AMD will release the socket M2 Athlon 64 platform that uses DDR2 so this will eventually become a moot issue.

Quiet = The majority of system noise comes from fans. Logically the hotter a component is, the more CFM a fan needs to push to keep said component cool enough. More CFM makes more noise, all else being equal. That Athlon 64/Opteron CPUs run much cooler than current Pentium 4 CPUs is absolute 100% truth.

Here's the lowdown on a quick and easy "relatively quiet" system. Why I say "relatively quiet" is that there are some fanatics (and I say that word with respect and awe) that think any noise from the computer, real or imagined, is too noisy. :laugh:

case - Any with 120mm fans, non-restrictive fan grills and HDD isolation (usually rubber grommets). Use Nexus fans, or undervolted Yate Loon or Cooler Master. Avoid SilentX and Thermaltake (from anecdotal evidence). Quality steel cases are usually quieter than aluminum, though really not a huge amount of difference. If you want, mount fans with isolators (but don't use the hard rubber Sunbeam ones). A really nice and budget case that is quiet is the Antec SLK3000B, but there are many to choose from in the market.

power supply - Supposedly Seasonic S12 series are really nice. There are passively cooled units, but I wouldn't recommend those to non-fanatics. Antec TruePower II units are nice, as are Fortron "green" units (suffixed as "-60GLN"). Zalman and Enermax should be okay also, along with a bunch of others.

CPU - Any 90nm socket 939 core, which is pretty much all that's currently on the market.

CPU cooler - Any that uses a 120mm fan, or the Zalman 9500 with 92mm fan, plus undervolt the fans. Alternately use a Scythe Ninja heatsink and run it passive.

video card cooler - Most stock coolers are too noisy for "quiet" computing. Replace with a Zalman 700 series or appropriate Arctic Cooling NV series. You can also be hardcore and go passive with dual heatpipe units, though you'd have to be very sure of your case airflow for that to be feasible.

That should take care of all the fan noise, next up is HDD noise... though most current 7200RPM models with fluid bearings are reasonably quiet.

Originally posted by: berat556
Why are you using opterons, since they are not optimized for gaming. I would suggest the x2 since multitasking is the future

WTF is this nonsense? For all intent and purposes, socket 939 Opterons = Athlon 64 of the same core speed and cache amount.

Depending on how much a n00b the OP is and his budget, I'd say single core is the better choice because few games benefit from dual core and if the right drivers/patches aren't installed and a chicken sacrificed to the dual core gods, in a few weeks dude will be back asking "why is my new dual core system lagging in some games and crashing out of others?" Generally speaking unless you are really doing some serious multitasking, in most games a 3500+ at default 2.2GHz will probably outperform an x2 3800+ at default 2GHz because clock speed is still king over the number of cores.

Originally posted by: ribbon13
This chart speaks for itelf

OMG the cheap 3200+ pwned the P4 Extremely Expensive chip! Well, they aren't cheap as of late, with even Newegg bumping price up to $175 - what's up with that?

Originally posted by: wizboy11
Use the dam search button!

Instead of the thread crap, why don't you welcome the forum n00b like ribbon13 did instead of skewering him as an easy pwnage? That's like playing games with difficulty set to "easy." If you think his post was useless, then your non-post was equally useless. Just chill out and have a :beer:

illusio here's a second "welcome to the forums," except I'll one-up ribbon13 by giving you a :cookie:
 

Markfw

Moderator Emeritus, Elite Member
May 16, 2002
27,235
16,106
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Op, welcome to the forums and have a :beer::beer::beer::beer::beer::beer:

Zap, great post ! Only one caveat, for me, work means using many Oracle SQL tools programs, that sometimes require a lot of power, telnet sessions, ftp, etcc, and I need the power the dual-core has, along with a LOT of memory (one gig is a minimum for work)

Bottom line ? Right now Intel has nothing worth buying, and the only question is whether you need or want a dual-core system, or a single-core is enough, and you don't want to be ready for the upcoming SMP optimizations in games, or can't afford dual-core.
 

TrueWisdom

Senior member
May 9, 2003
277
0
0
Great post, Zap.

And Illusio: Right now the price/performance ratio is heavily favoring AMD, especially if you take into consideration power consumption. It sounds to me like everything you're doing points to an AMD system, and one that only needs a single-core chip. If the purchase isn't going to be immediate, you may want to wait for Q1-Q2 '06--DDR2 will be available on AMD platforms, and Yonah will make it's debut.
 

Zap

Elite Member
Oct 13, 1999
22,377
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81
Thanks for the props guys. Makes me feel like I've earned my Elite status, no matter what the naysayers on OT have to write. :eek:

Originally posted by: Markfw900
Bottom line ? Right now Intel has nothing worth buying, and the only question is whether you need or want a dual-core system, or a single-core is enough

QFT
 

Griswold

Senior member
Dec 24, 2004
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Originally posted by: Zap
DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules.

Lets just ignore the "xxxMHz of bandwith" part and skip to the part where you claim 800MHz for DDR without overclocking - I'd really love to get that. :p
 
Aug 23, 2005
200
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Get a dual core or pay more next year updating again, single cores are the PAST , dual core pwn, dont waste ya cash , go future dual proof, 4400+ core @2.2, fx55 core@ 2.6, wtf , serious, get the dual core plug an 7800gt or sumf into it and smash the fx55 online anyday.....and for work , omfg you dont want single core shite, remember drivers and programs are virtually just around the corner for these duals cores and dual video cards, gamer are you , your going to miss out on alot of polygons and texture etc etc when our duals get a propper coded game on them, and a single, hehehe, get a dual core , RAM it up , 2 gigs min , jam a 7800gt in it, you have an incredible games / work pc.......
 

Sunrise089

Senior member
Aug 30, 2005
882
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Originally posted by: the splat in the hat
Get a dual core or pay more next year updating again, single cores are the PAST , dual core pwn, dont waste ya cash , go future dual proof, 4400+ core @2.2, fx55 core@ 2.6, wtf , serious, get the dual core plug an 7800gt or sumf into it and smash the fx55 online anyday.....and for work , omfg you dont want single core shite, remember drivers and programs are virtually just around the corner for these duals cores and dual video cards, gamer are you , your going to miss out on alot of polygons and texture etc etc when our duals get a propper coded game on them, and a single, hehehe, get a dual core , RAM it up , 2 gigs min , jam a 7800gt in it, you have an incredible games / work pc.......

wow....just wow.

OP - dual core is nice. It's also $150+ which will upgrade your video card a full level. In games, trust me, you will see more benefit with the video card upgrade. Most games still don't use dual core effectively, and those that do won't show huge gains. All in all it isn't a bad plan to buy a cheaper CPU now and then another cheaper dual core in 12-18 months.
 

Zap

Elite Member
Oct 13, 1999
22,377
7
81
Originally posted by: Griswold
Originally posted by: Zap
DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules.

Lets just ignore the "xxxMHz of bandwith" part and skip to the part where you claim 800MHz for DDR without overclocking - I'd really love to get that. :p

Socket 939 = dual channel worth of DDR400

P4 EE = dual channel worth of DDR2-533
 

JBird7986

Senior member
May 17, 2005
230
0
76
Originally posted by: Zap
Originally posted by: Griswold
Originally posted by: Zap
DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules.

Lets just ignore the "xxxMHz of bandwith" part and skip to the part where you claim 800MHz for DDR without overclocking - I'd really love to get that. :p

Socket 939 = dual channel worth of DDR400

P4 EE = dual channel worth of DDR2-533


Yeah, but don't forget the increased latency inherent in DDR2.
 

imported_illusio

Junior Member
Dec 16, 2005
3
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0
Please do not assume that I am a hardware n00b - I was attracted to the Opterons because we run quads at work for our bigger SQL servers. My problem with buying another AMD is that I just really hated the design of the older AMD CPUs, especially when Intel had a heat spreader/shield over the CPUs and the AMDs did not; this and some other issues with them really made it hard for me to trust their designs now, even after doing a lot of research.

On another note, I especially appreciate those of you who stuck up for me in this thread - I don't just go post in a forum and expect everyone to do my homework for me - that would be pathetic.

ill

(edit = removing the duplicate info in the message created when I put my hardware profile in my sig)
 

Hard Ball

Senior member
Jul 3, 2005
594
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0
Originally posted by: illusio
Please do not assume that I am a hardware n00b - I was attracted to the Opterons because we run quads at work for our bigger SQL servers. My problem with buying another AMD is that I just really hated the design of the older AMD CPUs, especially when Intel had a heat spreader/shield over the CPUs and the AMDs did not; this and some other issues with them really made it hard for me to trust their designs now, even after doing a lot of research.

I think you are talking about the lack of IHS on the Athlon XPs back in the days. Today, both Intel and AMD cpus, aside from the mobile lineup, all have IHS. Most AMD CPUs today run cooler, quieter, faster, better at FP calculations, lower memory latency, higher system bandwidth, and for the X2, even better at multimedia applications such as encoding.

You will be MUCH better of with an Opteron OCed by 20-40%, and will run circles around what Pentium D has to offer right now. A few years ago, that wasn't true, especially when the Northwoods reigned supreme, and mangeled the Palominos and T-breds in performance; but today the table has turned 180.

 

abs0lut3

Member
Jun 5, 2005
198
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Originally posted by: illusio
Please do not assume that I am a hardware n00b - I was attracted to the Opterons because we run quads at work for our bigger SQL servers. My problem with buying another AMD is that I just really hated the design of the older AMD CPUs, especially when Intel had a heat spreader/shield over the CPUs and the AMDs did not; this and some other issues with them really made it hard for me to trust their designs now, even after doing a lot of research.

On another note, I especially appreciate those of you who stuck up for me in this thread - I don't just go post in a forum and expect everyone to do my homework for me - that would be pathetic.

ill

(edit = removing the duplicate info in the message created when I put my hardware profile in my sig)


OP-If in fact you were thinking of Intel instead of AMD then have you though about the heat issues of Prescott chips that every Intel users (including myself) face everday? If I had a choice when I was bulding my system when my board went out, I would've got myself a Northwood instead of POScotts. In gaming, I have a motto in bulding a gamer PC: the very lowest to gain the greatest. Currently, I do not see that in Intel. Maybe next year but not right now.

Btw, if your fan port on your sysbd died on you, you could still buy a 3.5" fan controller to control it.
 

Griswold

Senior member
Dec 24, 2004
630
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Originally posted by: Zap
Originally posted by: Griswold
Originally posted by: Zap
DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules.

Lets just ignore the "xxxMHz of bandwith" part and skip to the part where you claim 800MHz for DDR without overclocking - I'd really love to get that. :p

Socket 939 = dual channel worth of DDR400

P4 EE = dual channel worth of DDR2-533

Uhm, you said DDR runs at 800MHz. It doesnt. DDR400 runs at 200MHz giving you the same datarate as if it was running at 400MHz. My question was, where do you come up with 800MHz? Dont toss dual channel in there, as it is not that simple to just claim 800MHz because you run with 2 channels..

 

2kfire

Senior member
Nov 26, 2004
246
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Originally posted by: Griswold
Originally posted by: Zap
Originally posted by: Griswold
Originally posted by: Zap
DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules.

Lets just ignore the "xxxMHz of bandwith" part and skip to the part where you claim 800MHz for DDR without overclocking - I'd really love to get that. :p

Socket 939 = dual channel worth of DDR400

P4 EE = dual channel worth of DDR2-533

Uhm, you said DDR runs at 800MHz. It doesnt. DDR400 runs at 200MHz giving you the same datarate as if it was running at 400MHz. My question was, where do you come up with 800MHz? Dont toss dual channel in there, as it is not that simple to just claim 800MHz because you run with 2 channels..

Intel seems to think so ;). Remember RAMBUS? That was a dual-channel solution, and Intel would claim 3200 MB/s. 400 MHz x 2 bytes (16 bits/8) x 2 (double-pumped) = 1600 MB/s. So how did they get 3200 MB/s? Take all that times 2, since it was dual channel. That would've been the same as claiming 'same memory bandwidth as 800 MHz!!!*', the star being a reference to some fine print stating "800 MHz run in single channel".

Besides that, Eq. 1: 2 channels = twice the data rate. Eq. 2: 2x the frequency = twice the data rate. Simple math says if you substitute Eq. 1 into Eq. 2, you get 2 channels = 2x the frequency. So to get twice the bandwidth, either double the frequency or double the number of channels OR double the bus width. All the same.
 

Sunrise089

Senior member
Aug 30, 2005
882
0
71
Originally posted by: 2kfire
Originally posted by: Griswold
Originally posted by: Zap
Originally posted by: Griswold
Originally posted by: Zap
DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules.

Lets just ignore the "xxxMHz of bandwith" part and skip to the part where you claim 800MHz for DDR without overclocking - I'd really love to get that. :p

Socket 939 = dual channel worth of DDR400

P4 EE = dual channel worth of DDR2-533

Uhm, you said DDR runs at 800MHz. It doesnt. DDR400 runs at 200MHz giving you the same datarate as if it was running at 400MHz. My question was, where do you come up with 800MHz? Dont toss dual channel in there, as it is not that simple to just claim 800MHz because you run with 2 channels..

Intel seems to think so ;). Remember RAMBUS? That was a dual-channel solution, and Intel would claim 3200 MB/s. 400 MHz x 2 bytes (16 bits/8) x 2 (double-pumped) = 1600 MB/s. So how did they get 3200 MB/s? Take all that times 2, since it was dual channel. That would've been the same as claiming 'same memory bandwidth as 800 MHz!!!*', the star being a reference to some fine print stating "800 MHz run in single channel".

Besides that, Eq. 1: 2 channels = twice the data rate. Eq. 2: 2x the frequency = twice the data rate. Simple math says if you substitute Eq. 1 into Eq. 2, you get 2 channels = 2x the frequency. So to get twice the bandwidth, either double the frequency or double the number of channels OR double the bus width. All the same.

Is this true? If so wouldn't that mean when dropping from a 2x512meg to 1x1024meg memory configuration you would in effect loose half your bandwidth, or the same effect as going from DDR400 to DDR200?
 

Fox5

Diamond Member
Jan 31, 2005
5,957
7
81
Originally posted by: Sunrise089
Originally posted by: 2kfire
Originally posted by: Griswold
Originally posted by: Zap
Originally posted by: Griswold
Originally posted by: Zap
DDR vs DDR2 = DDR2 has "up to" 1066MHz of bandwidth on the highest end Intel platforms while DDR is "only" 800MHz of bandwidth, not counting overclocking or premium memory modules.

Lets just ignore the "xxxMHz of bandwith" part and skip to the part where you claim 800MHz for DDR without overclocking - I'd really love to get that. :p

Socket 939 = dual channel worth of DDR400

P4 EE = dual channel worth of DDR2-533

Uhm, you said DDR runs at 800MHz. It doesnt. DDR400 runs at 200MHz giving you the same datarate as if it was running at 400MHz. My question was, where do you come up with 800MHz? Dont toss dual channel in there, as it is not that simple to just claim 800MHz because you run with 2 channels..

Intel seems to think so ;). Remember RAMBUS? That was a dual-channel solution, and Intel would claim 3200 MB/s. 400 MHz x 2 bytes (16 bits/8) x 2 (double-pumped) = 1600 MB/s. So how did they get 3200 MB/s? Take all that times 2, since it was dual channel. That would've been the same as claiming 'same memory bandwidth as 800 MHz!!!*', the star being a reference to some fine print stating "800 MHz run in single channel".

Besides that, Eq. 1: 2 channels = twice the data rate. Eq. 2: 2x the frequency = twice the data rate. Simple math says if you substitute Eq. 1 into Eq. 2, you get 2 channels = 2x the frequency. So to get twice the bandwidth, either double the frequency or double the number of channels OR double the bus width. All the same.

Is this true? If so wouldn't that mean when dropping from a 2x512meg to 1x1024meg memory configuration you would in effect loose half your bandwidth, or the same effect as going from DDR400 to DDR200?

You do lose half the bandwidth, but nowhere near the performance drop from ddr400 to ddr200.
1. Dual Channel (which both DDR and DDR2 utilize) does not really decrease latency like increasing the clock rate normally does. (DDR2, since it's new technology, also has higher latency than DDR even with the higher clock rates) Dual channel does not give the kind of performance increase that switching to truly faster memory (including lower latency) would have.
2. I don't think CPUs nowadays are powerful enough to make use of the full bandwidth of dual channel. Even if they are, most operations a computer performs are latency limited. (and nearly anything that's not latency dependent has been off-loaded to graphics cards or isn't time critical)

An Athlon 64 can have half the latency of the best of the best p4 memory controllers. And if you compare it to P4 memory controllers from back in the day (say i865) then it can have a quarter to a 6th of the latency. (at least in the synthetic tests I've seen, I doubt the newest p4 memory controllers have improved that much over the old ones in real usage, more likely they're just optimized for the synthetic test I was looking at)