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IntelBX80673I97900X
IntelBX8069510900X
▲ 55985 ▼

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

VS
▲ 53181 ▼
  

10 Cores, 20 Threads @3.70 GHz, 165 W.
Release date ≈ Q4 2019.

Effective Speed 
+4%
Real World Speed
Performance profile from 25,754 user samples
Benchmark your CPU here
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: 223rd / 1463
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 89%
Aircraft carrier
6,322 User Benchmarks
Best Bench: 94% Base clock 3.7 GHz, turbo 4.9 GHz (avg)
Worst Bench: 77% Base clock 3.7 GHz, turbo 1 GHz (avg)
Poor: 77% Great: 94%
SPEED RANK: 196th / 1463
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 93%
Nuclear submarine
Effective Speed
Effective CPU Speed 		81.9 % 85.1 % +4%
Average Score 
+5%
Memory
Avg. Memory Latency 		76.1 Pts 76.1 Pts
1-Core
Avg. Single Core Speed 		123 Pts 130 Pts Slightly faster single-core speed.
+6%
2-Core
Avg. Dual Core Speed 		243 Pts 258 Pts Slightly faster dual-core speed.
+6%
4-Core
Avg. Quad Core Speed 		470 Pts 504 Pts Slightly faster quad-core speed.
+7%
8-Core
Avg. Octa Core Speed 		898 Pts 949 Pts Slightly faster octa-core speed.
+6%
Overclocked Score 
+3%
Memory
OC Memory Latency 		87.6 Pts +2% 85.7 Pts
1-Core
OC Single Core Speed 		138 Pts 144 Pts +4%
2-Core
OC Dual Core Speed 		276 Pts 285 Pts +3%
4-Core
OC Quad Core Speed 		548 Pts 571 Pts +4%
8-Core
OC Octa Core Speed 		1069 Pts 1109 Pts +4%
Value & Sentiment 
+36%
Market Share
Based on 68,754,462 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.04 % 0.07 % Much higher market share.
+75%
User Rating
UBM User Rating 		55 % +4% 53 %
Nice To Haves 
+14%
Age
Newest 		87 Months 58+ Months Much more recent.
+33%
64-Core
OC Multi Core Speed 		1853 Pts 1909 Pts +3%
64-Core
Avg. Multi Core Speed 		1589 Pts 1679 Pts Slightly faster 64-core speed.
+6%
Specifications 
Launch Date
Launch Date 		Q2'17 Q4'19
Cache
Cache 		13.75 MB L3 19.25 MB Intel® Smart Cache
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX2, AVX-512 Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
Max Turbo Frequency
Max Turbo Frequency 		4.30 GHz 4.50 GHz
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 256 GB
Memory Types
Memory Types 		DDR4-2666 DDR4-2933
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2.0 2
PCI Express Revision
PCI Express Revision 		3.0 3
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		44 48

More specs » More specs »
Conclusion 
Average Bench 81.9%
Average Bench 85.1%

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]

MORE DETAILS

Released 25 November 2019, this Cascade Lake-X CPU is the refresh of i9-9900X. What got improved is pricing which is almost the half of the mentioned CPU and some mitigation against silicon and hardware level vulnerabilities. This CPU got improved base clock and boost clock, with each having 200MHz and 100MHz higher clock respectively. [Dec '19 ColdSpy]

MORE DETAILS

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