Review Index:
Feedback

Ivy Bridge-E: Intel Core i7-4960X Processor Review

Author: Ryan Shrout
Subject: Processors
Manufacturer: Intel

Clock for Clock: Ivy Bridge-E vs The Field

When we posted our Haswell review I included some clock-for-clock results of the recent Intel architectures. We took samples from each microarchitecture (Haswell, Ivy Bridge, and Sandy Bridge) to measure how their evolution impacts performance. Features, such as Turbo Boost and EIST, were disabled and each processor was set to the same, fixed, clock speed.

I am including similar data here though of course with the caveat that the Ivy Bridge-E platform has 50% more cores than the other processors listed.  In single threaded programs that won't matter but in most where multiple threads can be utilized, there is some obvious advantage of having two more cores.  Still, I think it remains a good data point to compare IVB-E to Haswell, etc. when running at exactly the same clocks.

View Full Size

View Full Size

Clearly in our single threaded test results you can see the advantages of the Haswell architecture over Ivy Bridge and Sandy Bridge.  But under a multi-threaded workload of the same application the IVB-E has a 37% advantage over Haswell.

View Full Size

View Full Size

Again the added cores of the IVB-E processor make up for architectural short comings it might have to Haswell.

View Full Size

View Full Size

Finally, in our x264 transcoding test we see advantages of 38% and 30% on each of the two different passes thanks to the added cores of IVB-E.

While clearly these results aren't as interesting as the Haswell, IVB, and SNB results from June, it does allow readers to easily estimate performance deltas of IVB-E over each of those previously released processors when overclocked to similar speeds.

September 3, 2013 | 04:07 AM - Posted by Boris (not verified)

"...a set of three of NVIDIA's GeForce GTX TITANs. At $999 MSRP, the TITAN is the fastest single GPU graphics card on the market and running three of them in SLI gives us a total of 18GB of graphics memory (!!)."

No it doesn't. VRAM is mirrored in SLI/CF. Therefore, three Titans still effectively have 6GB of VRAM.

September 3, 2013 | 08:04 AM - Posted by Irishgamer01

IF your a average gamer ....don't bother.
Love one but just cannot get over the price.

Not to be fanboy ish but shouldn't gamers be moving to 8 core
AMD. I know intel is faster, but two years down the road into xBONE and PS4 life cycle it might just be an advantage.

September 3, 2013 | 10:03 AM - Posted by YTech

8 Core is great, but from what I've heard, most games aren't well optimized for 8 cores.

Hence why most gamers used to recommend the 2 core CPU (Duo/Dual). Now, 4 cores is preferred. Eventually, most games will be optimized for 8 cores. I do recall seeing some new games that when it detect additional cores, it will utilize them.

However, note that more cores means lower clock-speed (Ghz) per core. So if you can't use those additional cores, performance is decreased.

As for other usages such as high computing task, 8 cores are recommended (e.i. Adobe software).

Cheers! :)

June 12, 2014 | 08:09 AM - Posted by Dominga (not verified)

Incredible points. Sound ɑrguments. Keep up the good work.

My web blog :: clothing manufacturers in india - Dominga -

September 3, 2013 | 07:47 PM - Posted by Clayton (not verified)

I'm sure none of the reviewers have wanted to do this, for obvious reasons, and we probably won't know till more are in the wild, but I'd love to know if these have soldered IHSs or if I need to continue my tradition of de-lidding these things. It will influence my decision to a reasonable degree. I haven't seen mention of this on any of the reviews so far.

September 17, 2013 | 11:14 PM - Posted by Anonymous (not verified)

I've seen it somewhere.. Ivy-E is soldered to the IHS.

September 6, 2013 | 06:36 PM - Posted by Anonymous (not verified)

Any plans to test PCI Express 2.0 vs 3.0 on the "E" platforms?

September 9, 2013 | 05:12 PM - Posted by ZzzSleep (not verified)

There just isn't the single threaded IPC gains that we need for anybody to justify an upgrade from Sandy Bridge onwards. There's also no gains in overclocking headroom either, which makes the processor a pretty lackluster offering over the last generation from Intel.

September 9, 2013 | 10:43 PM - Posted by Dan (not verified)

What's up with the slow memory latency of the 4960X? Does having 4 memory channels affect the latency?

Post new comment

The content of this field is kept private and will not be shown publicly.
  • Lines and paragraphs break automatically.
  • Allowed HTML tags: <a> <em> <strong> <cite> <code> <ul> <ol> <li> <dl> <dt> <dd> <blockquote><p><br>
  • Web page addresses and e-mail addresses turn into links automatically.

More information about formatting options

By submitting this form, you accept the Mollom privacy policy.