The Intel Ivy Bridge (Core i7 3770K) Review
by Anand Lal Shimpi & Ryan Smith on April 23, 2012 12:03 PM EST- Posted in
- CPUs
- Intel
- Ivy Bridge
Power Consumption
Intel isn't really exploiting 22nm for significantly higher default or max turbo frequencies. While it does seem like you'll hit turbo frequencies more often with Ivy, most of what 22nm offers will be realized as power savings.
The data in the charts below is from our original 3770K preview, however I've also provided a table comparing the 3770K to the 2700K using Intel's own Z77 motherboard which is a bit more power hungry than our typical testbed:
| Power Consumption Comparison | ||||
| Intel DZ77GA-70K | Idle | Load (x264 2nd pass) | ||
| Intel Core i7 3770K | 80.1W | 146.4W | ||
| Intel Core i7 2700K | 79.4W | 177.6W | ||
As you can see, there are no savings at idle and a reasonably significant improvement under load.
The same is echoed on our earlier chip in a more power efficient platform:
I was also curious to see what power consumption would look like compared to other low-end GPUs. For these next results I used the 3770K alone, without a discrete card and measured power consumption. I then added in discrete GPUs from our HD 4000 comparisons and looked at both idle and load power while playing Metro 2033:
Obviously at idle it's impossible to beat the HD 4000, the GPU is largely stopped/gated when idle keeping power consumption to a minimum. Under load is where things get interesting:
Ivy's GPU is much more power efficient than SNB's, however Intel still has a way to go before it starts to equal the power efficiency of modern discrete GPU architectures. Remember the HD 4000 is on Intel's 22nm process here while the GT 440 is built on TSMC's 40nm process.
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pwnsweet - Saturday, April 28, 2012 - link
The only thing I care about is how much faster this new slab of silicon will power though my x264 encoding and that's the one part of the review that was left out!Why anand, why!? Reply
pwnsweet - Saturday, April 28, 2012 - link
nevermind, I'm an idiot. I found it. ReplyPG - Sunday, April 29, 2012 - link
http://ark.intel.com/products/65511/Intel-Core-i5-... Replyktmobi - Wednesday, May 02, 2012 - link
Keep in mind that in Ivy Bridge, CPU speed is directly propotional to GPU's speed + performance.Source - http://mobilityupdate.com/notebooks/intel-hd-4000-... Reply
BSMonitor - Wednesday, May 02, 2012 - link
In the mobile line up, there is only 1 SKU for Intel Processors. As they cut back on the CPU, the HD3000 or HD4000 remains for ALL mobile GPUs. ReplySalientKing - Tuesday, May 08, 2012 - link
I just got a 3450, the tag on it says 95w, your chart here says 77w. I'm a little worried i just got a repackaged SB cpu.... Replywarmbit - Wednesday, May 09, 2012 - link
For those who want to see a comparison of 3770K to 2600k in more games (several sites), please check the article:http://translate.google.com/translate?hl=pl&sl... Reply
DaddyMacCadillac - Thursday, June 14, 2012 - link
"Quick Sync's transcoding abilities are limited to applications like Media Espresso or ArcSoft's Media Converter—there's still no support in open source applications like Handbrake."Umm, try MediaCoder, steep learning curve but it works great! I also wish Handbrake would adopt this technology... Reply
midn8t - Thursday, June 28, 2012 - link
I would like to say that they do not seem to say what they are running for GPU, also I own the fx chip in this review and would like to say that with the 7970 driect cuII asua vide card, I get way over those FPS in dawn of war maxed out gfxs I am getting 134 average fpsI also own dragonage and when I am running fraps I am getting maxed res max AA getting 139 average fps
cyris I get 139 fps and I get civ 5 225 fps
be honest the cpu has little to do with FPS its video card mostly anyways I am running eyeinfity setup on top of this and getting these fps in game according to fraps Reply
midn8t - Thursday, June 28, 2012 - link
I have the AMD FX 8150 and I also own Crysis: Warhead, Civilization V, Dawn of War II, and Dragon Age Origins and I get way better FPS then they claimed to have gotten I mean my FPS are almsot double that, sometimes tripple and I am using Farpsfor exampel Civ 5 I get average of 190 FPS in game maxed out res with eyeinfity using Fraps
but I am also using a 7970 Directcu2 GPU Reply