The Intel Broadwell Xeon E3 v4 Review: 95W, 65W and 35W with eDRAM
by Ian Cutress on August 26, 2015 9:00 AM ESTSPECviewperf 12 on a GTX 980
From popular demand, we have introduced SPECviewperf 12 into our testing regimen from August 2015. SPEC is the well-known purveyor of industry standard benchmarks, often probing both fundamental architectural behavior of processors and controllers, as well as comparing performance with well understood industry software and automated tools. It is this last point we pick up – SPECviewperf 12 tests the responsiveness of graphics packages in the fields of design, medical, automotive as well as energy. The benchmarks focus purely on responsiveness and the ability to both display and rotate complex models to aid in design or interpretation, using each packages internal graphics schema (at 1080p). We run this set with a discrete graphics card, similar to the workstation environments in which they would be used. As a new benchmark, we are still filling the system with data.
At a certain point it seems that most tests are graphics card bound, however a few show up that having the fastest processor makes a difference. Differences from the Haswell platforms score +5% at best, although a bigger difference can be seen going further back in CPU generations. At this point with a discrete graphics card, SPECviewperf's tests are more akin to our gaming tests when it comes to responsiveness.
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imaheadcase - Wednesday, August 26, 2015 - link
Its the GPU the put on the CPU. I wonder why they don't have performance CPU without the GPU part. Gamers don't buy a CPU for the GPU since they have dedicated one already.Maybe im missing something, but seems like wasted space they could use for gamer orientated instructions.
MrSpadge - Wednesday, August 26, 2015 - link
The advantage of the 14 nm transistors is higher at lower voltages. The 6700K is so massively "overvolted" in stock mode, it's operating far above this sweet spot. That's why I would have loved to what those chips can achieve, regarding power consumption and efficiency, at ~4.0 GHz and minimum voltages. Alas, noone else seems to care about that. Most reviews are just showing full throttle operation. AT measured at lower OCs as well (thanks for that!), but apparently did not even try to go below 1.20 V either. That's higher than the stock voltage of Sandy Bridge..Oxford Guy - Wednesday, August 26, 2015 - link
High voltage overclocking is more likely to sell expensive products for cooling and has the added benefit of burning out chips, leading to even more sales.Ian Cutress - Thursday, August 27, 2015 - link
If you're burning out your processor by overclocking, you're doing it wrong.Oxford Guy - Wednesday, August 26, 2015 - link
The 4790K used more than 88 watts. That was marketing magic.typographie - Wednesday, August 26, 2015 - link
Average framerates don't really seem to tell us very much when seemingly every game tested is GPU-limited with an i5 or better. Would it be possible to post minimum framerates and/or frame time variance in future CPU gaming benchmarks? I suspect there would be more practically useful differences between CPUs in that data.MrSpadge - Wednesday, August 26, 2015 - link
Agreed - those benchmarks are pretty boring. Some website (forgot which one) showed minimum fps advantages of the 6700K to be massive (20 - 50%) for some games. This might be the more interesting metric.TallestJon96 - Wednesday, August 26, 2015 - link
I agree, give us average and either minimum or 99th percentile frame rates. Averages typically are GPU bound, but minimums are often more CPU heavy.I would prefer 99th percentile over minimum, as it is more consistent.
Ian Cutress - Thursday, August 27, 2015 - link
Our minimum results, on some benchmarks, seem to be all over the shot. It only takes one frame to drop a result down, which may or may not be inconsistent. We still have those values - check them over at anandtech.com/bench.In response to TallestJon96 below, I'm working on pulling 99th percentile data in a regular, consistent way.
satai - Wednesday, August 26, 2015 - link
I would be pretty interested in some compilation benchmarks - does cache trumph frequency?