The Sandy Bridge Review: Intel Core i7-2600K, i5-2500K and Core i3-2100 Tested
by Anand Lal Shimpi on January 3, 2011 12:01 AM ESTOverclocking Intel's HD Graphics
The base clock of both Intel's HD Graphics 2000 and 3000 on desktop SKUs is 850MHz. Thankfully, Intel's 32nm process allows for much headroom in both the CPU and GPU for overclocking. There are no clock locks or K-series parts to worry about when it comes to GPU overclocking; everything is unlocked. I started by trying to see how far I could push the Core i3-2100's HD Graphics 2000.
While I could get into Windows and run games at up to 1.6GHz, I needed to back down to 1.4GHz to maintain stability across all of our tests. That's a 64.7% overclock:
In some cases (Civilization V, WoW, Dawn of War II), the overclocked HD Graphics 2000 was enough to bring the 6 EU part close to the performance of the 3000 model. For the most part however the overclock just helped the Core i3-2100 perform halfway between it and the Core i5-2500K.
I tried the same experiment with the Core i5-2500K. While there's no chance it could catch up to a Radeon HD 5570, I managed to overclock my 2500K to 1.55GHz (the GPU clock can be adjusted in 50MHz increments):
The 82.4% increase in clock speed resulted in anywhere from a 0.6% to 33.7% increase in performance. While that's not terrible, it's also not that great. It looks like we're fairly memory bandwidth constrained here.
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Didn't turn out well did it?BSMonitor - Tuesday, January 4, 2011 - link
You'd spend $80 on a 6-core MB ?? LOLIf you buy a 6-core Phenom, likely you'll be in th 140-180 range for a decent MB..
Funny how the cheapers rationalize their cheapness.
zipzoomflyhigh - Tuesday, January 4, 2011 - link
That's not true at all. Most $40-50 AM3 mobo's support X6. If you don't game or overclock, you don't need extra pci-e lanes and extra cooling. Especially for a workstation.Oxford Guy - Monday, January 3, 2011 - link
Yeah, I'm stoked about the new low-level DRM.This is sure to run it fast.
talevski - Thursday, January 6, 2011 - link
i think that amd 880g mainbord with cpu araound 90 dolars plus some 55xx series gpu can do better in terms of encoding decoding video playback games etc. and all that without alot of money spend on inetl new socekets wich you have to trow away when they make the next cpu.So please corect me if i am wrongto anandtech&co
pshen7 - Tuesday, February 22, 2011 - link
The charts and the numbers say it all. This is definitely worth an upgrade for me!Peter Shen, founder Koowie.com
Shifu_V - Saturday, April 16, 2011 - link
Hi everyone, i dicided to build a PC but made an 1 error getting the i7 2600 if anyone is interested in buying one please let me, it's brand new sealed in it original contents.and i dont mind trading it in for a i7 2600k.
and i will match the price maybe even better
My email:vinay_chauhan20042000@yahoo.co.uk
Skott - Monday, January 3, 2011 - link
I'm wondering how supply will be on release day? Often we see new components with low supply and online stores start price gouging from day one. New Egg is particularly known for such. Lets hope supply is very good off the bat. That 2600K looks really appealing to me.evilspoons - Monday, January 3, 2011 - link
One of the local computer stores had Sandy Bridge parts up for sale last week, but they're all gone now save for a few Asus P8P67 standard, pro, and deluxe boards.I wasn't able to see what kind of money they were asking.
This review has convinced me that once the 2600K shows up again it's all I'll need. I was going to wait for socket 2011 but damn, the 2600 is already more than twice as fast in everything than my poor ol' Q6600.