Intel
IntelBX80673I97900X

6 Cores, 12 Threads @2 GHz, Sandy Bridge EP.
Release date ≤ Q1 2014.

10 Cores, 20 Threads @3.8GHz, Skylake-X.
Release date: Q2 2017.

Real World Speed
Performance profile from 22,972 user samples
3,540 User Benchmarks
Best Bench: 63% Base clock 2.4 GHz, turbo 2.65 GHz (avg)
Worst Bench: 47% Base clock 2 GHz, turbo 1 GHz (avg)
Poor: 47% Great: 63%
SPEED RANK: 638th / 1456
Gaming
Gaming 58%
Gunboat
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 46%
Yacht
19,432 User Benchmarks
Best Bench: 92% Base clock 3.3 GHz, turbo 4.95 GHz (avg)
Worst Bench: 72% Base clock 3.3 GHz, turbo 0.7 GHz (avg)
Poor: 72% Great: 92%
SPEED RANK: 216th / 1456
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 89%
Aircraft carrier
Effective Speed
Effective CPU Speed
57.5 % 81.9 % Much faster effective speed.
+42%
Memory
Avg. Memory Latency
75.2 Pts 76.1 Pts +1%
1-Core
Avg. Single Core Speed
56 Pts 123 Pts Hugely faster single-core speed.
+120%
2-Core
Avg. Dual Core Speed
113 Pts 243 Pts Hugely faster dual-core speed.
+115%
4-Core
Avg. Quad Core Speed
217 Pts 470 Pts Hugely faster quad-core speed.
+117%
8-Core
Avg. Octa Core Speed
340 Pts 898 Pts Hugely faster octa-core speed.
+164%
Memory
OC Memory Latency
82.8 Pts 87.6 Pts Slightly lower OC memory latency.
+6%
1-Core
OC Single Core Speed
65.1 Pts 138 Pts Hugely faster OC single-core speed.
+112%
2-Core
OC Dual Core Speed
130 Pts 276 Pts Hugely faster OC dual-core speed.
+112%
4-Core
OC Quad Core Speed
249 Pts 548 Pts Hugely faster OC quad-core speed.
+120%
8-Core
OC Octa Core Speed
391 Pts 1069 Pts Hugely faster OC octa-core speed.
+173%
Market Share
Based on 68,123,622 CPUs tested
Market Share
Market Share (trailing 30 days)
0.01 % 0.04 % Hugely higher market share.
+300%
Value
Value For Money
81.9 % Better value.
+10%
74.4 %
User Rating
UBM User Rating
51 % 55 % Slightly more popular.
+8%
Price
Price (score)
$77 Hugely cheaper.
+80%
$393
Age
Newest
123+ Months 84 Months Much more recent.
+32%
64-Core
OC Multi Core Speed
464 Pts 1853 Pts Hugely faster OC 64-core speed.
+299%
64-Core
Avg. Multi Core Speed
421 Pts 1589 Pts Hugely faster 64-core speed.
+277%
Launch Date
Launch Date
Q1'12 Q2'17
Cache
Cache
15 MB SmartCache 13.75 MB L3
Instruction Set Extensions
Instruction Set Extensions
AVX SSE4.1/4.2, AVX2, AVX-512
Embedded Options Available
Embedded Options Available
Yes No
Lithography
Lithography
32 nm 14 nm
Recommended Price
Recommended Customer Price
$382.00 - $410.00 $989.00 - $999.00
Max Turbo Frequency
Max Turbo Frequency
2.5 GHz 4.30 GHz
Bus Speed
Bus Speed
7.2 GT/s QPI 8 GT/s DMI3
QPI Links
# of QPI Links
2 0
Scalability
Scalability
2S Only 1S Only
Max Memory Size
Max Memory Size (dependent on memory type)
384 GB 128 GB
Memory Types
Memory Types
DDR3 800/1066/1333 DDR4-2666
ECC Memory Supported
ECC Memory Supported ‡
Yes No
Max CPU Configuration
Max CPU Configuration
2 1
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
1.0 2.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes
40 44

More specs » More specs »
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Intel’s core i9-7900X, from the Skylake-X series, is Intel’s latest 10-core, 20-thread flagship processor. It's the first to bear the i9 moniker and utilize the new X299 (Basin Falls) chipset/motherboard. The 7900X is the fastest CPU on the market today, however, imminent competition from AMD’s 16-core, 32-thread Ryzen Threadripper CPUs and the forthcoming release of more Intel Core X series mean that its reign will be a short one. The i9-7900X supersedes the 10-core Broadwell-E core i7-6950X that held the crown for little over a year. Both are extremely powerful and pricey high end desktop processors (HEDTs) which excel in multi-threaded tasks such as media encoding. However, despite the same power draw (TDP 140W), the newer i9-7900X betters the i7-6950X in terms of peak overclocked performance by 10% mostly thanks to increased clock speeds from 3.0GHz/4.0GHz to 3.3GHz/4.3GHz for base/turbo. It also betters the i7-6950X on price by around 28%. This all translates to the i9-7900X offering around 20% more value for money, even despite its eye-watering $999 price tag. The more accessible pricing (albeit not accessible for the majority) and hurried release of the i9-7900k to market is widely perceived as a reaction to AMD’s Ryzen Threadripper CPUs, rumoured for release towards the end of July 2017. So if you want to own the fastest consumer CPU in the world, it would be wise to wait for the dust to settle. [Jul '17 CPUPro]

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We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. Our calculated values are checked against thousands of individual user ratings. The customizable table below combines these factors to bring you the definitive list of top CPUs. [CPUPro]

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