IntelBX80673I97900X
IntelBX8070110400F

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

6 Cores, 12 Threads @2.9GHz, Comet Lake.
Release date: Q2 2020.

Real World Speed
Performance profile from 172,458 user samples
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 / 1445
Gaming
Gaming 82%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 89%
Aircraft carrier
153,026 User Benchmarks
Best Bench: 92% Base clock 2.9 GHz, turbo 4 GHz (avg)
Worst Bench: 75% Base clock 2.9 GHz, turbo 4 GHz (avg)
Poor: 75% Great: 92%
SPEED RANK: 177th / 1445
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 76%
Battleship
Effective Speed
Effective CPU Speed
81.9 % 85.2 % +4%
Memory
Avg. Memory Latency
76.1 Pts 89.6 Pts Lower memory latency.
+18%
1-Core
Avg. Single Core Speed
123 Pts +4% 118 Pts
2-Core
Avg. Dual Core Speed
243 Pts Slightly faster dual-core speed.
+6%
230 Pts
4-Core
Avg. Quad Core Speed
470 Pts Slightly faster quad-core speed.
+8%
435 Pts
8-Core
Avg. Octa Core Speed
898 Pts Faster octa-core speed.
+26%
715 Pts
Memory
OC Memory Latency
87.6 Pts 95.9 Pts Slightly lower OC memory latency.
+9%
1-Core
OC Single Core Speed
138 Pts Faster OC single-core speed.
+11%
124 Pts
2-Core
OC Dual Core Speed
276 Pts Faster OC dual-core speed.
+12%
246 Pts
4-Core
OC Quad Core Speed
548 Pts Faster OC quad-core speed.
+13%
485 Pts
8-Core
OC Octa Core Speed
1069 Pts Much faster OC octa-core speed.
+37%
778 Pts
Market Share
Based on 67,860,707 CPUs tested
Market Share
Market Share (trailing 30 days)
0.04 % 1.53 % Insanely higher market share.
+3,725%
Value
Value For Money
74.4 % 113 % Much better value.
+52%
User Rating
UBM User Rating
55 % 88 % Much more popular.
+60%
Price
Price (score)
$393 $98 Much cheaper.
+75%
Age
Newest
82 Months 48 Months Much more recent.
+41%
TDP
Thermal Design Power (TDP)
140 Watts 65 Watts Much more energy efficient.
+54%
Cores
CPU Processing Cores
10 cores Much higher core count.
+67%
6 cores
Threads
CPU Processing Threads
20 threads Much higher thread count.
+67%
12 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.8 GHz Much faster base frequency.
+31%
2.9 GHz
Turbo Clock
Turbo Clock Speed
4.3 GHz 4.3 GHz
64-Core
OC Multi Core Speed
1853 Pts Hugely faster OC 64-core speed.
+89%
978 Pts
64-Core
Avg. Multi Core Speed
1589 Pts Much faster 64-core speed.
+76%
903 Pts
Series
CPU Architecture
Skylake-X Comet Lake
Socket
Motherboard Socket
LGA2066 FCLGA1200
Graphics
Integrated Graphics
None None
Launch Date
Launch Date
Q2'17 Q2'20
Cache
Cache
13.75 MB L3 12 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
Bus Speed
Bus Speed
8 GT/s DMI3 8 GT/s
Turbo Boost 3.0 Tech
Intel® Turbo Boost Max Technology 3.0 ‡
Yes No
Thermal Solution Specification
Thermal Solution Specification
PCG 2017X PCG 2015C
Memory Channels
Max # of Memory Channels
4 2
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 16

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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The i5-10400F is a six-core hyperthreaded CPU from Intel’s latest Comet Lake series of desktop processors. This 65 W CPU has single core and all core boost frequencies of 4.3 GHz and 4.0 GHz, respectively. Whilst the 10400F will require a new LGA1200 motherboard, such as the Z490, Intel have guaranteed that the next generation of Rocket Lake CPUs will also be compatible with this chipset. The 10400F is aimed at mid-tier gaming PC builds, and as such, ships with a cooler but without integrated graphics. Despite being officially launched in Q2 of 2020, at the time of writing, the 10400F is still not widely available. Compared to the similarly priced Ryzen 5 3600, the 10400F’s lower memory latency gives it the lead in gaming and effective speed benchmarks. Since the Ryzen architecture creates a gaming bottleneck, it is necessary to upgrade to a higher tier, Intel CPU for better gaming performance. On the other hand comparing the i5-10400F and the i3-10100 shows that the 10100 offers comparable gaming performance for 22% less money whilst also including integrated graphics. [Jun '20 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 2024 CPU Rankings

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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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Best value for money - Value for money is based on real world performance.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
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 Frequently Asked Questions

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HDDRAMUSB
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