CPU Upgrade -Intel Core i7-4770K or Intel Core i5 4670K?

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ValkyrieOneNiner

ValkyrieOneNiner

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Jul 13, 2011
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Hello all.

It's that time again, when you glance at the recommended requirements for a heavy game such as Watch Dogs then look to your own PC with a gulp.

I'm looking to upgrade my i5 2500k for a newer CPU as I now have my GTX 770 2GB. Both CPU's in the main title are within my price range and are equally powerful and either would be fine for me. But a second opinion would be most welcome.

Thank you.

(Oh, and if possible, a relatively cheap motherboard type for either would be helpful too)
 
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Eggz
So, there is about a 5%-10% performance difference from the get go between the 2500k and the 4670k. http://cpuboss.com/cpus/Intel-Core-i5-4670K-vs-Intel-Core-i5-2500K

If you OC about 8%, then you'll match the stock performance of the 4670k. Other things to consider are that the 4670k has native PCI-e 3.0 support, whereas the 2500k has PCI-e 2.0 support natively ("native" being the key word). The memory bandwidth on the 4670k's memory controller also exceeds the 2500k's by 4.6 GB/s (21 vs. 25.6). If you care much, the 4670k is also a little more power efficient. Also, as games become more well threaded, the fact that the 4670k has Intel® TSX-NI, but the 2500k doesn't, may come into play. Intel claims that the technology is...
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maddogfargo

maddogfargo

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Nov 28, 2006
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Slap a good CLC cooler like an H100, H100i or H110 if you have the 140mm fan vents available and OC that 2500k. It's still a good gaming CPU with a lot of potential when tuned right.

Make sure you have a good board for overclocking and you should be fine.
 
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Eggz

Eggz

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Sep 3, 2013
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So, there is about a 5%-10% performance difference from the get go between the 2500k and the 4670k. http://cpuboss.com/cpus/Intel-Core-i5-4670K-vs-Intel-Core-i5-2500K

If you OC about 8%, then you'll match the stock performance of the 4670k. Other things to consider are that the 4670k has native PCI-e 3.0 support, whereas the 2500k has PCI-e 2.0 support natively ("native" being the key word). The memory bandwidth on the 4670k's memory controller also exceeds the 2500k's by 4.6 GB/s (21 vs. 25.6). If you care much, the 4670k is also a little more power efficient. Also, as games become more well threaded, the fact that the 4670k has Intel® TSX-NI, but the 2500k doesn't, may come into play. Intel claims that the technology is "focused on multi-threaded performance scaling. [It] helps make parallel operations more efficient via improved control of locks in software." Finally, the lithography is 22nm on the 4670k and 32 nm on the 2500k.

Other than that, though, the processors are very much the the same. If you're really itching for an upgrade, you can go for the 4770k. It's 15%-30% faster than the 4670k, but you pay for the performance premium. http://cpuboss.com/cpus/Intel-Core-i7-4770K-vs-Intel-Core-i5-4670K

On the other hand, if you can stick it out with the 2500k until it actually starts to show its age, then the same amount of money will get you a significantly more capable CPU in the future.

2500k: http://ark.intel.com/products/52210
4670k: http://ark.intel.com/products/75048/intel-core-i5-4670k-processor-6m-cache-up-to-3_80-ghz

 
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