New Build: 2500K or 3570K

[MustangSVT]

Ivy Bridge cores run hotter than Sandy Bridge cores. It doesn't matter, though - the silicon doesn't care. It isn't breaking the safe thermal limits Intel declared, so there isn't any real reason to worry about it.

Also, PCI-E 3.0 won't give a 2-3% increase in performance. More like a 0-0% increase. Modern GPUs are only starting to push the bandwidth provided by AGP 8x.

oh really? lets not take numbers out of thin air.

http://www.hardocp.com/article/2012/07/18/pci_express_20_vs_30_gpu_gaming_performance_review/13

 

[pantsaregood]

if pci-e 3.0 worked on the current gpu's , cpu's , mb's by spec. should give 10% but it does not , why not ?
-we know x79 cpu's only return 75% spec'ed data feed from the cpu and why intel rated them at 2.0 ,but nv pulled drivers [no support ] for pci-e 3.0 on those cpu based on the mb's builds.
-side note: a gtx 680 will be a low range vid card in 3 yrs , the life of a system so a 3.0 system today could be useful in 1-2 yrs the way I look at it running sli @ x8 + x8

PCI-E 3.0 won't result in a 10% boost in performance simply because GPUs aren't using that kind of bandwidth. Dual-GPU cards incur relatively low performance loss when they run in PCI-E 2.0 4x configurations. Your GTX 680 could run in PCI-E 2.0 8x without any issue.

This is identical to the case of using quad-channel DDR3-2133 on Sandy Bridge-E. You may have 68266.6 MB/s of hypothetical bandwidth, but your actual throughput will never come close to that level because your CPU just can't saturate it.

Also, that review shows performance difference at absurdly high resolution. That allows more bandwidth to be taken advantage of. You have to acknowledge, however, that a 5-10% increase in performance out of a 100% increase in bandwidth is a very minimal return.

 

[poohbear]

-side note: a gtx 680 will be a low range vid card in 3 yrs , the life of a system so a 3.0 system today could be useful in 1-2 yrs the way I look at it running sli @ x8 + x8

lol what? you're new to computers are'nt you? there's no way in hell a gtx 680 would be low range in 3 years! Even when video card development was at its peak 5-10 years ago, a high end video card would not drop to low end in 3 years (and nowadays video card development has slowed to the point that a high end card remains high end after 3 years). Case in point: my 5870 that i bought 3 years ago is still in the upper performance segment of the graphic card hierarchy (just can't use AA is all).

 

[HURRIC4NE]

Hey guys,

My AMD system retired itself early after a mishap with my PSU and Mobo. I am wanted to go with Intel this time around to see what all the hype is about.

However, I can't seem to figure out if I should be getting the Sandy Bridge or the Ivy Bridge. People keep saying don't get the Ivy because its too hot, but I am reading reviews that have good temps for it..also, all this talk about PCI Express 3.0. Do I really need that? Im planning on getting a 7950 thats PCI 3.0...what difference would it make?

Both CPUs are similarly priced.


Let me know whats up!

try using your cell phone as a computer (well duh!) and then wait for haswell. till then use the calculator as your computering unit.

(sike, lol, save money go for the cheapest option because haswell is gonna get a new socket and what not, and its not really that far away (less than a year?)

 

[nyker96]

3570k no doubt, you'll kick urself for missing out the new tech, if you just want a 2500k, can get a used off ebay for quite a bit less than 3570k which makes it somewhat better value, but still, even that is true, I'd still buy 3570k for the new tech.

 

[RussianSensation]

There is a Microcenter in Michigan, I am just not close to it at the moment. Plus, I have the pay tax there..so wouldnt it come out to be the same price as amazon?

The CPU + mobo combo gives you another $50 discount at Microcenter. Check out the flyer.

PCIe 2.0 vs. 3.0 performance hit is very small, especially for HD7900 series. It's measurable in benchmarks (1-3%) on a single GPU but it will not change the gameplay. Also, when running a single GPU, you'll have full PCIe 2.0 x16, where the performance difference is more like 1%. You would get more much bang for the buck saving $ on the motherboard and spending it on an SSD, or invest more into the GPU. If you can get $50 off with a 2500K, it's also a good deal since it's $30 less at Microcenter than the 3570K. Both options are good. Don't sweat it too hard as the performance will be similar and next generation CPU Haswell is less than a year away. If you find you need more performance, you can always resell these parts and upgrade to Haswell. That's what I am doing

 

[daveybrat]

Since the 2500K just dropped to $159 at Microcenter, i'd say that's the best deal out right now for a great cpu.

 

[rgallant]

lol what? you're new to computers are'nt you? there's no way in hell a gtx 680 would be low range in 3 years! Even when video card development was at its peak 5-10 years ago, a high end video card would not drop to low end in 3 years (and nowadays video card development has slowed to the point that a high end card remains high end after 3 years). Case in point: my 5870 that i bought 3 years ago is still in the upper performance segment of the graphic card hierarchy (just can't use AA is all).

I think you took what I posted out of context , while you are still in the mind set of your other thread.
http://forums.anandtech.com/showthread.php?t=2237927

or you know that the high end cards in 2015 won't be crippled by pci-e 2.0 @ x8 + x8 sli ,vs the cards running in pci-e 3.0 ?

 

[dmoney1980]

no brainer at this price - http://www.microcenter.com/single_product_results.phtml?product_id=0354589

 

[futurefields]

2500k

 

[cmdrdredd]

http://www.microcenter.com/single_product_results.phtml?product_id=0388577

$30 more try harder next time.

 

[futurefields]

The ivy is not worth $30 more Go for the 2500k

 

[videogames101]

Personally I couldn't not buy the newest tech for $30 more. IPC yo'

 

[cmdrdredd]

Personally I couldn't not buy the newest tech for $30 more. IPC yo'

This!

Most buyers keep their systems running for a couple years. You could get quite a benefit from lower power consumption, and for all we know a real serious boost from PCie 3.0 in that time. What happens if next year your performance is reduced with PCie 2.0 bandwidth limitations?

Hate to be the guy who saved $30 but loses 20fps because of it and renders the latest hot games unplayable at a high enough resolution on the next gen or two of cards.

 

[futurefields]

Hate to be the guy who saved $30 but loses 20fps because of it and renders the latest hot games unplayable at a high enough resolution on the next gen or two of cards.

Does dual 680's even limit PCI-E 2.0?

Really, what are you talking about 20 fps difference? Where are you getting this from and based on what equipment? You think a 3570k will yield 20fps more in games than a 2500k guy? Really? You really honestly think that?

I mean I would be amazed if somebody who has ranked up 10,000 posts in a computer tech forum would believe something like that. Honestly when you take into account the much better overclocking performance Sandy Bridge has over Ivy then you are likely to get better long term performance out of Sandy Bridge because while your Ivy has melted due to insane temps, the Sandy is still plugging along happily at 4.8ghz and not even hitting 70 degrees celcius.


So yes, get Ivy if you want the "hottest" tech lol

Get Sandy if you want the best bang for the buck and best long term performance when overclocked.

 

[Homeles]

oh really? lets not take numbers out of thin air.

http://www.hardocp.com/article/2012/07/18/pci_express_20_vs_30_gpu_gaming_performance_review/13

It's really rather embarrassing of them to have published that. The IPC difference between the 3770K and 2600K invalidates their findings.

 

[Arkaign]

Honestly there's not enough of a difference to worry about. By the time a 2500k w/PCI 2.0 is outdated, a 3570K w/PCI 3.0 will be outdated.

Really it's win/win. For non-overclockers, the 3570k is definitely the way to go though. But who buys a K chip to run stock? Once overclocked, they perform basically identically, with the *slightly* higher IPC of Ivy keeping balance with the *slightly* higher clocks Sandy gets. PCIE 3.0 is a non-starter, GPUs need a good huge leap before that's going to matter, unless you're running three or four super top end dual-GPU monsters of some sort. Those kind of buyers aren't buying 2500k or 3570k anyway, they buy the $1k+ chips.

So yeah, you can't lose. Personally I'd pocket the ~$30 (?), or put it towards a better GPU if you're a gamer, or a faster SSD if you couldn't care less.

 

[Arkaign]

It's really rather embarrassing of them to have published that. The IPC difference between the 3770K and 2600K invalidates their findings.

Not to mention that the 7970, which is now overall faster than the 680 (thanks RussianSensation for making that abundantly clear, lol), showed basically zero improvement with the PCI 3.0 setup. So why would a faster GPU not speed up further with PCI 3.0?

I think they just failed at their analysis, and there's something else going on entirely for the 680 and 7970 results to be so dramatically different.