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 ESTResolution Scaling with Intel HD Graphics 3000
All of our tests on the previous page were done at 1024x768, but how much of a hit do you really get when you push higher resolutions? Does the gap widen between a discrete GPU and Intel's HD Graphics as you increase resolution?
On the contrary: low-end GPUs run into memory bandwidth limitations just as quickly (if not quicker) than Intel's integrated graphics. Spend about $70 and you'll see a wider gap, but if you pit Intel's HD Graphics 3000 against a Radeon HD 5450 the two actually get closer in performance the higher the resolution is—at least in memory bandwidth bound scenarios:
Call of Duty: Modern Warfare 2 stresses compute a bit more at higher resolutions and thus the performance gap widens rather than closes:
For the most part, at low quality settings, Intel's HD Graphics 3000 scales with resolution similarly to a low-end discrete GPU.
Graphics Quality Scaling
The biggest issue with integrated and any sort of low-end graphics is that you have to run games at absurdly low quality settings to avoid dropping below smooth frame rates. The impact of going to higher quality settings is much greater on Intel's HD Graphics 3000 than on a discrete card as you can see by the chart below.
The performance gap between the two is actually its widest at WoW's "Good" quality settings. Moving beyond that however shrinks the gap a bit as the Radeon HD 5450 runs into memory bandwidth/compute bottlenecks of its own.
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saikyan - Thursday, January 6, 2011 - link
"perhaps we should return to just labeling these things with their clock speeds and core counts? After all, it’s what Apple does—and that’s a company that still refuses to put more than one button on its mice. Maybe it’s worth a try."I hate to sound like the resident Mac fanboy (I'm platform agnostic) but I want to point out:
1. Apple sells by trim and display, they don't really make a big deal of the CPU (probably because they stick to low-end and midrange CPUs)
2. They have been shipping multi-button mice for nearly six years now. Come on!
vol7ron - Friday, January 7, 2011 - link
- gtx460 image quality definitely the worst- 6870 image quality next
- quicksync/snb image quality are the best (marginally better than 6870); I did notice some color loss in the flowers behind the umbrella when I zoomed in on the quicksync picture, so I'd have to give SNB the title in terms of quality. QuickSync gets the title in terms of performance.
nitrousoxide - Monday, January 10, 2011 - link
lmaoBurticus - Monday, January 10, 2011 - link
My last Intel cpu was a prescott 2.4ghz P4 OC'd to over 3ghz... back in 2004? My last 3 main system builds all AMD.... I was thinking about going to an X6 in the near future, now I guess maybe not. My price point is pretty much $200 for the cpu + motherboard so maybe I'll have to wait a couple months.Suddenly my 2 year old Phenom II seems very, very slow...
magnusr - Tuesday, January 11, 2011 - link
I just received my 2600K. It only had the normal fan. No special heatsink/fan for the 2600K. The same heatsink as the rest....This is a fraud since I placed my decision to take 2600K instead of the 2500K based on the better heatsink and the cache.
mmcnally - Tuesday, January 11, 2011 - link
Same here.. Very disapointed as I would have purchased a better heatsink if I knew. I guess I'll just do the install with the standard crap HS and hold off on over-clocking until I get a better one.swing848 - Tuesday, January 11, 2011 - link
Many of us are using older equipment. And, for those of us with limited funds it would have been nice if you would have added the Intel Q9650 and run all game benchmarks at 3.4GHz [ the speed of the 2600K], except for the default 3.6GHz speed of the X4 975BE, leave it there.I have a QX9650 that I purchased from eBay and it does 4GHz+ with ease, in a Gigabyte P35-DS3R motherboard, even with my ancient cooler [Thermalright XP-90] that I pulled from a socket 478 motherboard [$5 adapter].
Note: I lapped the XP-90 with a slight convex shape to better use with un-lapped CPUs.
In any event, a "quick and dirty" or simple overclock would have yielded at least some usable information. To save time, no need to try to get the maximum speed from all components.
As long as the CPUs were already overclocked, you could run all benchmarks at those speeds, not just games. Many of us overclock to get more for our money.
You included the ancient Q6600 at it's slow default speed - in some of the benchmarks. Why didn't you include it in all benchmarks?
Your normal benchmark page does not include a full, or nearly full, list of games and CPUs, so, comparisons are difficult to find, example here anandtech.com/bench/CPU/62
Where does this leave those of us with older equipment that is still chugging along?
Kell_sw - Thursday, January 13, 2011 - link
DRM inside the cpu? People is blind?. The sad thing, everybody is going to buy this.Sweeo - Friday, January 14, 2011 - link
I just bought a upgrade "kit" from an core 2 2.8 quad to i7 950 :(but I got 6 sata ports I noticed the new boards have 4+2
will the more advanced boards have more ?
Ahumado - Sunday, January 16, 2011 - link
I didn't see it discussed. Did I miss it?