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IntelBX80673I97900X
IntelBX80673I77820X
▲ 55980 ▼

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

VS
▲ 631,512 ▼

8 Cores, 16 Threads @3.6GHz, Skylake-X.
Release date: Q2 2017.

Effective Speed 
+2%
Real World Speed
Performance profile from 47,956 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: 209th / 1442
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 89%
Aircraft carrier
28,524 User Benchmarks
Best Bench: 92% Base clock 3.6 GHz, turbo 4.7 GHz (avg)
Worst Bench: 70% Base clock 3.6 GHz, turbo 3.85 GHz (avg)
Poor: 70% Great: 92%
SPEED RANK: 233rd / 1442
Gaming
Gaming 80%
Aircraft carrier
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 81%
Aircraft carrier
Effective Speed
Effective CPU Speed 		81.9 % +2% 80.1 %
Average Score 
+3%
Memory
Avg. Memory Latency 		76.1 Pts +1% 75.5 Pts
1-Core
Avg. Single Core Speed 		123 Pts +2% 121 Pts
2-Core
Avg. Dual Core Speed 		243 Pts +2% 238 Pts
4-Core
Avg. Quad Core Speed 		470 Pts +3% 455 Pts
8-Core
Avg. Octa Core Speed 		898 Pts Slightly faster octa-core speed.
+9% 		822 Pts
Overclocked Score 
+3%
Memory
OC Memory Latency 		87.6 Pts +3% 85 Pts
1-Core
OC Single Core Speed 		138 Pts 138 Pts
2-Core
OC Dual Core Speed 		276 Pts +1% 272 Pts
4-Core
OC Quad Core Speed 		548 Pts +3% 533 Pts
8-Core
OC Octa Core Speed 		1069 Pts Slightly faster OC octa-core speed.
+10% 		976 Pts
Value & Sentiment 
+9%
Market Share
Based on 67,719,241 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		0.06 % 0.06 %
Value
Value For Money 		71.5 % 73.8 % +3%
User Rating
UBM User Rating 		55 % 63 % More popular.
+15%
Price
Price (score) 		$455 $375 Cheaper.
+18%
Nice To Haves 
+12%
Age
Newest 		81 Months 81 Months
TDP
Thermal Design Power (TDP) 		140 Watts 140 Watts
Cores
CPU Processing Cores 		10 cores Higher core count.
+25% 		8 cores
Threads
CPU Processing Threads 		20 threads Higher thread count.
+25% 		16 threads
Lithography
Manufacturing process 		14 nm 14 nm
Base Clock
Base Clock Speed 		3.8 GHz Slightly faster base frequency.
+6% 		3.6 GHz
Turbo Clock
Turbo Clock Speed 		4.3 GHz 4.5 GHz +5%
64-Core
OC Multi Core Speed 		1853 Pts Faster OC 64-core speed.
+28% 		1445 Pts
64-Core
Avg. Multi Core Speed 		1589 Pts Faster 64-core speed.
+26% 		1263 Pts
Specifications 
Series
CPU Architecture 		Skylake-X Skylake-X
Socket
Motherboard Socket 		LGA2066 LGA2066
Graphics
Integrated Graphics 		None None
Cache
Cache 		13.75 MB L3 11 MB L3
Instruction Set Extensions
Instruction Set Extensions 		SSE4.1/4.2, AVX2, AVX-512 SSE4.1/4.2, AVX 2.0, AVX-512
Recommended Price
Recommended Customer Price 		$989.00 - $999.00 $589.00 - $599.00
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		44 28

More specs » More specs »
Conclusion 
Average Bench 81.9%
Average Bench 80.1%
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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]

MORE DETAILS

The I7-7820X is the second of three new Skylake-X HEDT (high end desktop processors) released by Intel as part of their core X series (the others being the flagship 10-core i9-7900X and the 6-core i7-7800X). The 7820X is an 8-core, 16-thread CPU which will amply satisfy all but the heaviest of multi-threaded use cases. The 7820X requires a relatively expensive X299 (Basin Falls) motherboard, which costs upwards of $250. The 7820X is listed at $599 which is about $200 more than AMD's current flagship 8-core, 16 thread Ryzen 7 1800X. In addition to better IPC, the 7820X is higher clocked with base and max boost clocks of 3.6/4.5 GHz respectively, compared to 3.6G/4.0 GHz for the Ryzen 7 1800X. The additional $200 (50%) buys you around 20% more performance in both single and multi core workloads. Intel have also released several Kabylake-X HEDT CPUs: the 4-thread i5-7640X and the 8-thread i7-7740X and will shortly release of even higher spec Skylake-X processors. It's probably wise to hold off purchasing until the eagerly anticipated 16-core, 32-thread Ryzen Threadripper CPUs are launched later this month. [Jul '17 CPUPro]

MORE DETAILS

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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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