The Core i7 980X Review: Intel's First 6-Core Desktop CPU
by Anand Lal Shimpi on March 11, 2010 12:00 AM EST- Posted in
- CPUs
DivX 8.5.3 with Xmpeg 5.0.3
Our DivX test is the same DivX / XMpeg 5.03 test we've run for the past few years now, the 1080p source file is encoded using the unconstrained DivX profile, quality/performance is set balanced at 5 and enhanced multithreading is enabled:
Our DivX and WME tests are getting long in the tooth. Most serious encoding is done using H.264 now, but I included these results to show that even in lighter workloads the 980X can still manage to pull ahead of the 975. The 980X is 30% faster in our DivX encode test, and it completes the encode in less than a quarter of the time of the old Pentium EE 955.
x264 HD Video Encoding Performance
Graysky's x264 HD test uses the publicly available x264 codec (open source alternative to H.264) to encode a 4Mbps 720p MPEG-2 source. The focus here is on quality rather than speed, thus the benchmark uses a 2-pass encode and reports the average frame rate in each pass.
To see what 6 cores and 12 threads can do we needn't look any further than the second (encoding) pass of our x264 benchmark:
The Core i7 980X is nearly 50% faster than the Core i7 975, 76% faster than the i7 870 and over twice the speed of the QX9770. This is a greater performance jump than we've seen from any single architectural shift. If you are serious about video encoding, you want Gulftown.
Windows Media Encoder 9 x64 Advanced Profile
In order to be codec agnostic we've got a Windows Media Encoder benchmark looking at the same sort of thing we've been doing in the DivX and x264 tests, but using WME instead.
Our Windows Media Encoder 9 test is the lightest of our video encoding tests. Without stressing the additional cores, the 980X performs no different from the 975.
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Anand Lal Shimpi - Thursday, March 11, 2010 - link
That depends on the board I believe. Intel's DX58SO may not post without the BIOS update.Take care,
Anand
Jammrock - Thursday, March 11, 2010 - link
One small title error. Intel's Xeon X7000-series CPUs are the first hex-core processors from Intel. Those are server only, but they are out there.http://ark.intel.com/Product.aspx?id=36947&cod...">http://ark.intel.com/Product.aspx?id=36...16M+Cach...
Gulftown is the first desktop hex-core though.
Anand Lal Shimpi - Thursday, March 11, 2010 - link
Corrected :)Take care,
Anand
artifex - Thursday, March 11, 2010 - link
3x cores and threads for less than 2x the TDP of their dual cores? sexy!Isaac the k - Thursday, March 11, 2010 - link
I must say, I do find this rather exciting.But since I'm running a poorly threaded data-simulation app with extremely high throughput, I'm debating whether the extra latency vs. the larger shared cache could potentially harm performance.
If it wouldn't, I might actually request one for what my office is doing right now...
mikeblas - Thursday, March 11, 2010 - link
Aren't the Xeon E7450, Xeon L7455, and Xeon X7460 all six-core Intel processors that were released before this processor?semo - Thursday, March 11, 2010 - link
If I understand this right Nahalem is the name of the micro architecture and not any CPU in particular. On page 2, the first die shot is captioned Nehalem. Shouldn't it be Bloomfield?BTW Anand, you are doing a good job demystifying desktop products but the mobile space is even worse
arandale http://ark.intel.com/ProductCollection.aspx?codeNa...">http://ark.intel.com/ProductCollection.aspx?codeNa... vs clarkdale http://ark.intel.com/ProductCollection.aspx?codeNa...">http://ark.intel.com/ProductCollection.aspx?codeNa...
vPro is even more confusing. E.g. AMT KVM is supposed to work on AMT 6.0 + on chip GPU yet the i3 don't apply... or the i5-661 http://communities.intel.com/community/openportit/...">http://communities.intel.com/community/...ote-cont...
it would be useful if we could get some articles on mobile chips and/or vPro
iwodo - Thursday, March 11, 2010 - link
Waiting for Sandy Bridge- which will hopefully be the true successor of Core 2 Duo.PCI - Express 3.0, SATA 3.0, USB 3.0 ( Light Peak will be even better ), Bluetooth 4.0.
AnnonymousCoward - Saturday, March 13, 2010 - link
Light Peak is kinda dumb...I think that's just multi-lane USB3/PCIe, and using light instead of wires is pointless since no one needs really long point-to-point cables. Apple just wants it since they're all about marketing new flashy things. USB3 could just as easily use as many lanes as you want, but it'd be unnecessarily expensive since 1 lane at 5Gbps is much faster than anything.Pessimism - Thursday, March 11, 2010 - link
This is not intel's first 6 core CPU. The 6 core Xeon 7400 was announced in 2008.