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Ivy iGPU power

birthdaymonkey

birthdaymonkey

Golden Member
Nice to see some numbers coming out on the Intel HD4000 graphics. Do we know anything about the HD2500 yet? Will it actually perform worse than the current HD3000?

It seems silly to me to include the faster GPU only in the high end SKUs, especially considering most power users buy a video card. People buying budget systems are the ones who need more from an iGPU, and it looks to me like Ivy might not deliver.
 
I would expect it to be midway between HD2000 and HD3000 performance just as the name suggests.

birthdaymonkey said:
It seems silly to me to include the faster GPU only in the high end SKUsd
Click to expand...

There's i3-2105 which has HD 3000. There will probably be an Ivy Bridge i3 SKU with HD 4000 as well. However it'd be nice to have Pentiums with the better graphics.
 
HD 4000 = 16 EU
HD 3000 = 12 EU
HD 2500 = 8 EU
HD 2000 = 6 EU

There are some architectural improvements in the IB EUs, so I would expect the 2500 to perform closer to the 3000 than the 2000.
 
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8 is 43% of the way between 5 and 12, and if the architectural improvements amount to ~10-15% extra performance like on the CPU itself (compared to Sandy Bridge), then on average it'd be a 8 * 1.125 = 9 EU of the older generation, still midway between HD2000 and HD3000. Not sure if that makes sense. However maybe the architectural advantages are bigger than that?
 
lehtv said:
8 is 43% of the way between 5 and 12, and if the architectural improvements amount to ~10-15% extra performance like on the CPU itself (compared to Sandy Bridge), then on average it'd be a 8 * 1.125 = 9 EU of the older generation, still midway between HD2000 and HD3000. Not sure if that makes sense. However maybe the architectural advantages are bigger than that?
Click to expand...

I actually had a typo in my table, the HD 2000 has 6 EUs. A quick and dirty calculation based on AT's Crysis 1680x1050 results shows that Sandy Bridge is worth 3 FPS/EU and IB is worth 3.18 FPS/EU. So you're right that they haven't really improved it that much from an architectural point of view.
 
That is a pretty meager increase then. I suppose Intel is a bit optimistic in its naming scheme. It should be a HD2400 😛
 
The difference between the HD2000 and HD4000 doesn't really matter for anyone who is using the onboard GPU.

My 2 cents. What can you do with the 4000, that you can't with the 2000?

Neither can game (at least 1/2 serious anyways).... both make great HTPC GPU's.

Why not just release the HD4000 for all models?
 
I was hoping to put one in my HTPC, actually, and cool it with a fanless heatsink, but HD 2000 isn't quite fast enough to run madVR with high quality filters. The apparent lackluster performance of HD 2500 means that I'll have to either buy an expensive IB or wait for a the equivalent of the 2105 to come out, which won't be till the end of the year.
 
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