COMPARE
CPU
RANKINGS
TEST
YOUR CPU
ADD TO PC
BUILD
IntelBX8070110400F
IntelBX80633I74820K
▲ 8810,071 ▼

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

VS
▲ 552,296 ▼

4 Cores, 8 Threads @3.7GHz, Ivy Bridge-E.
Release date: Q3 2013.

Effective Speed 
+19%
Real World Speed
Performance profile from 176,195 user samples
Benchmark your CPU here
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
23,169 User Benchmarks
Best Bench: 81% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Worst Bench: 61% Base clock 3.7 GHz, turbo 3.75 GHz (avg)
Poor: 61% Great: 81%
SPEED RANK: 362nd / 1445
Gaming
Gaming 72%
Battleship
Desktop
Desktop 75%
Battleship
Workstation
Workstation 58%
Gunboat
Effective Speed
Effective CPU Speed 		85.2 % Faster effective speed.
+19% 		71.8 %
Average Score 
+29%
Memory
Avg. Memory Latency 		89.6 Pts Slightly lower memory latency.
+6% 		84.7 Pts
1-Core
Avg. Single Core Speed 		118 Pts Faster single-core speed.
+26% 		94 Pts
2-Core
Avg. Dual Core Speed 		230 Pts Faster dual-core speed.
+26% 		182 Pts
4-Core
Avg. Quad Core Speed 		435 Pts Much faster quad-core speed.
+36% 		320 Pts
8-Core
Avg. Octa Core Speed 		715 Pts Much faster octa-core speed.
+50% 		477 Pts
Overclocked Score 
+16%
Memory
OC Memory Latency 		95.9 Pts +2% 94 Pts
1-Core
OC Single Core Speed 		124 Pts Slightly faster OC single-core speed.
+7% 		116 Pts
2-Core
OC Dual Core Speed 		246 Pts Faster OC dual-core speed.
+13% 		217 Pts
4-Core
OC Quad Core Speed 		485 Pts Faster OC quad-core speed.
+24% 		392 Pts
8-Core
OC Octa Core Speed 		778 Pts Much faster OC octa-core speed.
+34% 		581 Pts
Value & Sentiment 
+955%
Market Share
Based on 67,881,309 CPUs tested
See market share leaders
Market Share
Market Share (trailing 30 days) 		1.53 % Insanely higher market share.
+3,725% 		0.04 %
Value
Value For Money 		113 % Better value.
+22% 		92.7 %
User Rating
UBM User Rating 		88 % Much more popular.
+60% 		55 %
Price
Price (score) 		$98 Cheaper.
+11% 		$110
Nice To Haves 
+43%
Age
Newest 		48 Months Much more recent.
+62% 		128 Months
TDP
Thermal Design Power (TDP) 		65 Watts Much more energy efficient.
+50% 		130 Watts
Cores
CPU Processing Cores 		6 cores Much higher core count.
+50% 		4 cores
Threads
CPU Processing Threads 		12 threads Much higher thread count.
+50% 		8 threads
Lithography
Manufacturing process 		14 nm Much newer manufacturing.
+36% 		22 nm
Base Clock
Base Clock Speed 		2.9 GHz 3.7 GHz Faster base frequency.
+28%
Turbo Clock
Turbo Clock Speed 		4.3 GHz Faster turbo frequency.
+10% 		3.9 GHz
64-Core
OC Multi Core Speed 		978 Pts Much faster OC 64-core speed.
+68% 		583 Pts
64-Core
Avg. Multi Core Speed 		903 Pts Hugely faster 64-core speed.
+85% 		487 Pts
Specifications 
Series
CPU Architecture 		Comet Lake Ivy Bridge-E
Socket
Motherboard Socket 		FCLGA1200 FCLGA2011
Graphics
Integrated Graphics 		None None
Launch Date
Launch Date 		Q2'20 Q3'13
Cache
Cache 		12 MB Intel® Smart Cache 10 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions 		Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.2, AVX, AES
Lithography
Lithography 		14 nm 22 nm
Max Turbo Frequency
Max Turbo Frequency 		4.30 GHz 3.9 GHz
Bus Speed
Bus Speed 		8 GT/s 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type) 		128 GB 64 GB
Memory Types
Memory Types 		DDR4-2666 DDR3 1333/1600/1866
Memory Channels
Max # of Memory Channels 		2 4
Memory Bandwidth
Max Memory Bandwidth 		41.6 GB/s 59.7 GB/s
Package Size
Package Size 		37.5mm x 37.5mm 52.5mm x 45.0mm
Turbo Boost Tech
Intel® Turbo Boost Technology ‡ 		2 2.0
PCI Express Revision
PCI Express Revision 		3 3.0
Max # of PCI Express Lanes
Max # of PCI Express Lanes 		16 40

More specs » More specs »
Conclusion 
Average Bench 85.2%
Average Bench 71.8%
ADVERTISEMENT

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

This is yet another processor from Intel that demonstrates their total market domination in the high end PC sector. The 4820K isn't really a step forward in any particular direction but rather a variant on what's already been available (performance wise) for a few years. As long as Intel is largely competing with itself they will likely continue with these sorts of incremental releases. The 4820K requires an Intel X79 chipset, which dates back to Sandy Bridge-E and lacks some of the newer features like native USB 3.0 support. An investment in the 4820K only makes sense if you already own an LGA2011 Motherboard and could be seen as good money chasing bad given that the platform is due an upgrade. That said the 4820K is a very capable multi-core processor and it sits amongst the top handful of processors in this regard. For typical consumers a Haswell i3 will offer mostly identical response times, a lower energy footprint and a significantly more competitive price. [Nov '13 CPUPro]

MORE DETAILS

User Builds 
153,026
23,169
Custom PC Builder (Start a new build) Build your perfect PC: compare component prices, popularity, speed and value for money

CHOOSE A COMPONENT:

CPU GPU SSD HDD RAM MBD
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]

ADVERTISEMENT

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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute

Welcome to our PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best value for money upgrades.

UserBenchmark of the month

Gaming Desktop ProGaming

How it works

  • - Download and run UserBenchmark
  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
  • - RAM tests include: single/multi core bandwidth and latency
  • - SkillBench (space shooter) tests user input accuracy
  • - Reports are generated and presented on userbenchmark.com
  • - Identify the strongest components in your PC
  • - See speed test results from other users
  • - Compare your components to the current market leaders
  • - Explore your best upgrade options with a virtual PC build
  • - Compare your in-game FPS to other users with your hardware

 Frequently Asked Questions

Processors FAQ
AMD vs Intel: Gaming performance 2012-2021
How does IPC compare between AMD's Ryzen and Intel's Kaby Lake?
What is multi core mixed speed?
What is multi core integer speed?
What is multi core floating point speed?
What is single core mixed CPU speed?
What is quad core mixed CPU speed?
What is quad core floating point speed?
What is quad core integer speed?
What is single core floating point speed?
What is single core integer speed?
What is the GeekBench single core score?
What is a CPU?
What is the effective CPU speed index?
What is overclocking?
What is thermal design power (TDP)?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $273Nvidia RTX 4060 $280Crucial MX500 250GB $39
Intel Core i5-12400F $128Nvidia RTX 4060-Ti $385Samsung 850 Evo 120GB $80
Intel Core i5-12600K $160Nvidia RTX 4070 $550Samsung 870 Evo 250GB $29
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $39SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $32Corsair Vengeance LPX DDR4 3000 C15 2x8GB $48SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $62G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
If you make a purchase via one of these links, our site may earn a commission
Today's hottest
Amazon Ebay
deals
CPU GPU SSD HDD USB RAM MBD
Build Test EFps
Can You Run It?
►
YouTube
*NEW*
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback