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Pentium D equivalent of X2 3800+ ?

P

pctwo

Senior member
price wise, the X2 3800+ ~= to Pentium D 830. Performance wise, is it closer to the 840 or 830?

I'm trying to figure out if I'm saving money building my own or just buying another Dell. I want to build cause I can't go through life w/o doing it at least once, right? I can't do better than Dell on a low or mid range rig, but a higher one...
 
An X2 3800+ is at least as good as the 840 in many applications. If you plan to overclock the X2, then it will blow any Pentium D out of the water.
 
thanks.

another Q: the xy00 numbers on amd chips used to mean they're at least as fast as a Pentium x.yGhz, e.g. amd 3200 =~ 3.2ghz Pentium. But I think Intel has deemphasized clock speed too, so now do those number correlate to anything in reality?
 
NO. And OC'ed PentiumD dual-core would have to be over 4.4 ghz to keep up with a X2 3800@2550. My own benchmarks show that to be a good approxamation.
 
Originally posted by: Markfw900
NO. And OC'ed PentiumD dual-core would have to be over 4.4 ghz to keep up with a X2 3800@2550. My own benchmarks show that to be a good approxamation.
Click to expand...

I couldn't imagine the heat produced by a 4.4 ghz PentiumD dual-core. Probably would need a phasechange just to start it up, :laugh:
 
I had mine to 3.6, but it throttles with any load, and is not stable. Thats with the big typhoon, and open case with exhaust fan. Temps over 70c with that setup, and I wold it to shut down at 70.
 
Hi

I don't deal much with pentiums so I'm kinda lost here little bit. A buddy of mine is tryin to sell me one of computers he got for xmas from his rich a$$ dad 🙂, and he don't even know what pentium is in it. I ran Sandra on it and don't really wanna open it, maybe I should run some other kinda tests in Sandra or other programs but I don't know which proc is there. That's what I got on general info from Sandra

Processor
Model : Intel(R) Pentium(R) D CPU 3.20GHz
Speed : 3.20GHz
Performance Rating : PR4256 (estimated)
Cores per Processor : 1 Unit(s)
Threads per Core : 4 Unit(s)
Internal Data Cache : 16kB Synchronous, Write-Thru, 8-way set, 64 byte line size
L2 On-board Cache : 1MB ECC Synchronous, ATC, 8-way set, 64 byte line size, 2 lines per sector

Front Side Bus Speed : 4x 200MHz (800MHz data rate)
Total Memory : 1GB DDR2-SDRAM
Memory Bus Speed : 4x 166MHz (664MHz data rate)


Which one is it? Or at least can u tell me what to use without physically diggin into the PC to find out? Prolly somth stupid, maybe I just had to run specific CPU summary or whatev.....thanx!
 
Well something looks very stange... Use CPUID and see what it says. Also, does taks manager have 2 performance graphs ?
 
Originally posted by: michaelpatrick33
Originally posted by: Markfw900
NO. And OC'ed PentiumD dual-core would have to be over 4.4 ghz to keep up with a X2 3800@2550. My own benchmarks show that to be a good approxamation.
Click to expand...

I couldn't imagine the heat produced by a 4.4 ghz PentiumD dual-core. Probably would need a phasechange just to start it up, :laugh:
Click to expand...

You can get ~4.2 on air with the preslers there are few users on the forum who have done this.
 
Clock for clock to match a stock 3800+ you'd have to have a P4 running at about 3.6~8Ghz or so depending on the game. To match an overclocked 3800+ you'd need 4Ghz+ from Intel.

You can accomplish 4GHz+ with a heavily overclocked D920 with the right board, but it takes a little effort.

Whether it's worth it or not is up to you.
 
At 2500-2600 you need at least 4.4 ghz on the 920d. Thats NOT easy unless you have at least watercooling or phase change. And the motherboard is more exspensive that is required to get that speed also. My $80 mobo will run a 920d, but only ~3.4-3.6. You need a $200 mobo to get that, so it negates the reason to save $30 on the cpu.
 
Originally posted by: hamidjunior
Hi

I don't deal much with pentiums so I'm kinda lost here little bit. A buddy of mine is tryin to sell me one of computers he got for xmas from his rich a$$ dad 🙂, and he don't even know what pentium is in it. I ran Sandra on it and don't really wanna open it, maybe I should run some other kinda tests in Sandra or other programs but I don't know which proc is there. That's what I got on general info from Sandra

Processor
Model : Intel(R) Pentium(R) D CPU 3.20GHz
Speed : 3.20GHz
Performance Rating : PR4256 (estimated)
Cores per Processor : 1 Unit(s)
Threads per Core : 4 Unit(s)
Internal Data Cache : 16kB Synchronous, Write-Thru, 8-way set, 64 byte line size
L2 On-board Cache : 1MB ECC Synchronous, ATC, 8-way set, 64 byte line size, 2 lines per sector

Front Side Bus Speed : 4x 200MHz (800MHz data rate)
Total Memory : 1GB DDR2-SDRAM
Memory Bus Speed : 4x 166MHz (664MHz data rate)


Which one is it? Or at least can u tell me what to use without physically diggin into the PC to find out? Prolly somth stupid, maybe I just had to run specific CPU summary or whatev.....thanx!
Click to expand...

any results w/ CPU-Z? it looks like it might be an 840EE...
 
x2-4K4 is the way to go

edit: no matter what, a Pentium D will always be fast, but for the same price, an X2 would probably be a more effective for the end user as far as PSU draw and performance goes.
 
Originally posted by: Markfw900
At 2500-2600 you need at least 4.4 ghz on the 920d. Thats NOT easy unless you have at least watercooling or phase change. And the motherboard is more exspensive that is required to get that speed also. My $80 mobo will run a 920d, but only ~3.4-3.6. You need a $200 mobo to get that, so it negates the reason to save $30 on the cpu.
Click to expand...

Based on the reviews here and on Tom's, the processors aren't "that" far off. In most cases it looks to take Intel a solid 1Ghz jump in clockspeed to make up the difference but they do make it up.

As far as saving cash, let's not forget the money saved by going with DDR2.

 
Originally posted by: Faikius
Originally posted by: Markfw900
At 2500-2600 you need at least 4.4 ghz on the 920d. Thats NOT easy unless you have at least watercooling or phase change. And the motherboard is more exspensive that is required to get that speed also. My $80 mobo will run a 920d, but only ~3.4-3.6. You need a $200 mobo to get that, so it negates the reason to save $30 on the cpu.
Click to expand...

Based on the reviews here and on Tom's, the processors aren't "that" far off. In most cases it looks to take Intel a solid 1Ghz jump in clockspeed to make up the difference but they do make it up.

As far as saving cash, let's not forget the money saved by going with DDR2.
Click to expand...

Let's also not forget the performance lost because of using high-latency "value" DDR2 to achieve this savings, as well as the fact that the Pentium D is a heat factory and in a poorly ventilated case can throttle.

Many users already have DDR memory they can use for an upgrade.
 
Originally posted by: jiffylube1024
Originally posted by: Faikius
Originally posted by: Markfw900
At 2500-2600 you need at least 4.4 ghz on the 920d. Thats NOT easy unless you have at least watercooling or phase change. And the motherboard is more exspensive that is required to get that speed also. My $80 mobo will run a 920d, but only ~3.4-3.6. You need a $200 mobo to get that, so it negates the reason to save $30 on the cpu.
Click to expand...

Based on the reviews here and on Tom's, the processors aren't "that" far off. In most cases it looks to take Intel a solid 1Ghz jump in clockspeed to make up the difference but they do make it up.

As far as saving cash, let's not forget the money saved by going with DDR2.
Click to expand...

Let's also not forget the performance lost because of using high-latency "value" DDR2 to achieve this savings, as well as the fact that the Pentium D is a heat factory and in a poorly ventilated case can throttle.

Many users already have DDR memory they can use for an upgrade.
Click to expand...


Latency has less effect than bandwith on p4s. If you read the xbit labs article, you will see this to be self-evident.
 
Originally posted by: Markfw900
At 2500-2600 you need at least 4.4 ghz on the 920d. Thats NOT easy unless you have at least watercooling or phase change. And the motherboard is more exspensive that is required to get that speed also. My $80 mobo will run a 920d, but only ~3.4-3.6. You need a $200 mobo to get that, so it negates the reason to save $30 on the cpu.
Click to expand...

Up until the second core died, my Presler @3.7ghz was keeping up with my X2 @2.618ghz fairly well. It was faster in AutoGK, behind in Cinebench, ahead in Pov Ray. If this new motherboard works as well as I have seen, I could get 275-310mhz FSB with a $110 motherboard. I'll have results soon enough.
 
The 920 is roughly equivalent in productivity apps with a 3800+, but slower in gaming. But using a high end-card and running games in 1280x1024 or higher I can't find a noticable difference. The 920 overclocks far better and cost less than a 3800+.
 
Originally posted by: Markfw900
At 2500-2600 you need at least 4.4 ghz on the 920d.
Click to expand...

No.

I have compared a 920@4066 (aircooled and 24/7 stable) with a 3800+@2510 Mhz in 7 different applications and benchmarks (DVD Shrink, LAME, Cinebench, Photoshop, Business Winstone, PCMark 2005, WinRAR) 4 different games (FEAR, CoD, Quake, Battlefield). The 920 was in almost all of them faster or at least at the level of the 3800+.

 
The 920's are not the "heat factories" their 820 cousins are. Just as an example, mine runs at 48C both cores full load, on water of coarse.

Besides, who cares how hot the thing gets as long as it works? Some reviewers were getting thei P4 EE's up to 70C+ without throttling.
 
Originally posted by: Faikius
The 920's are not the "heat factories" their 820 cousins are. Just as an example, mine runs at 48C both cores full load, on water of coarse.
Click to expand...

Thats hot compare to X2 3800+, mine running 2 Folding@home instaces
and reaching 50-52'c load temp using Big Typhoon.
 
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