IntelBX80684I58400
AMDYD195XA8AEWOF

6 Cores, 6 Threads @2.8GHz, Coffee Lake.
Release date: Q4 2017.

16 Cores, 32 Threads @3.4GHz, Zen.
Release date: Q3 2017.

Real World Speed
Performance profile from 56,271 user samples
48,788 User Benchmarks
Best Bench: 93% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 75% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Poor: 75% Great: 93%
SPEED RANK: 46th / 1144
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
7,483 User Benchmarks
Best Bench: 118% Base clock 4.15 GHz, turbo 4.1 GHz (avg)
Worst Bench: 96% Base clock 3.4 GHz, turbo 0.55 GHz (avg)
Poor: 96% Great: 118%
SPEED RANK: 19th / 1144
Gaming
Gaming 108%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 168%
UFO
Effective Speed
Effective CPU Speed
88.6 % 108 % Faster effective speed.
+22%
SC Mixed
Avg. Single Core Mixed Speed
116 Pts +5% 111 Pts
QC Mixed
Avg. Quad Core Mixed Speed
450 Pts +4% 434 Pts
MC Mixed
Avg. Multi Core Mixed Speed
648 Pts 2317 Pts Hugely faster multi-core speed.
+258%
SC Mixed
OC Single Core Mixed Speed
122 Pts +2% 120 Pts
QC Mixed
OC Quad Core Mixed Speed
475 Pts +1% 472 Pts
MC Mixed
OC Multi Core Mixed Speed
700 Pts 2664 Pts Hugely faster OC multi-core speed.
+281%
Market Share
Based on 12,922,794 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.23 % Hugely higher market share.
+720%
0.15 %
Value
Value For Money
106 % Better value.
+23%
86.8 %
User Rating
UBM User Rating
117 % Much more popular.
+33%
88 %
Price
Price (score)
$179 Much cheaper.
+66%
$520
Age
Newest
14 Months Slightly more recent.
+12%
16 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+64%
180 Watts
Cores
CPU Processing Cores
6 cores 16 cores Hugely higher core count.
+167%
Threads
CPU Processing Threads
6 threads 32 threads Hugely higher thread count.
+433%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
2.8 GHz 3.4 GHz Faster base frequency.
+21%
Turbo Clock
Turbo Clock Speed
4 GHz 4 GHz
SC Int
Single Core Integer Speed
118 Pts +2% 116 Pts
SC Float
Single Core Floating Point Speed
127 Pts +2% 124 Pts
QC Int
Quad Core Integer Speed
460 Pts +2% 453 Pts
QC Float
Quad Core Floating Point Speed
499 Pts +1% 493 Pts
MC Int
Multi Core Integer Speed
670 Pts 2588 Pts Hugely faster multi-core int speed.
+286%
MC Float
Multi Core Floating Point Speed
740 Pts 2695 Pts Hugely faster multi-core fp speed.
+264%
Series
CPU Architecture
Coffee Lake Zen
Socket
Motherboard Socket
FCLGA1151 TR4
Graphics
Integrated Graphics
UHD 630 None
ADVERTISEMENT

The i5-8400 is a competitively priced hex-core processor from Intel’s 8th generation of Core processors (Coffee Lake). Along with the release of the unlocked i5-8600K, this is the first time that six-core processors have featured in the i5 line-up. Like the other Coffee Lake processors, the i5-8400 is based upon an improved version of Intel’s 14nm architecture which featured in both Skylake and Kaby Lake. Early benchmarks reveal that for average quad core usage (most games employ a maximum of four cores) the i5-8400 performs way above its pay grade. It achieves quad core mixed speeds close to Intel’s outgoing 2017 flagship the $300, quad-core, 8 thread i7-7700k, which to date has been a strong favourite for high-end gaming setups. On paper, the i5-8400 has a base clock of 2.8 GHz (Intel are significantly downplaying the performance of this SKU by giving it a relatively low nominal base clock), an all core boost of 3.8 GHz (this is the effective base clock figure that counts) and a single core boost of 4 GHz. This compares reasonably well to the i5-8600K which has a base clock of 3.6 GHz, all core boost of 4.1 GHz and a single core boost of 4.3 GHz. The i5-8400 also features 9MB of L3 cache and an energy-thrifty TDP of 65W. Priced at under $190, the i5-8400 offers fantastic value for money. Unfortunately, like the other Coffee Lake processors, the i5-8400 will require a new 300 series motherboard, and at the time of writing, the only available version is Intel’s high-end Z370 which isn't an ideal pairing for the i5-8400. The Z series motherboards are designed to cater for the unlocked and overclockable "K" SKUs. Cheaper 300 series motherboards will be available in 2018 at which time the 8400 will offer even better value for money. [Oct '17 CPUPro]

MORE DETAILS

AMD’s 16 core, 32 thread Ryzen Threadripper 1950X is finally here to seize the throne for high end desktop processors. The 1950X is the flagship of the Zen based Threadripper series which also includes the 12 core 1920X and the 8 core 1900X. The 1950X has a stock clock of 3.4 GHz increasing to a maximum single core boost of 4.0 GHz and features quad channel DDR4 and 64 PCI Express lanes. This processor is effectively two Ryzen 7 1800Xs glued together with Infinity Fabric (AMD’s scalable interconnecting technology), making the 1950X one of the physically largest CPUs on the consumer market. If you are considering this CPU, you will need a new X399 motherboard with a TR4 socket. Early benchmarks show the 1950X competing with Intel’s similarly priced i9-7900X. Whilst the 7900X has slightly higher single and quad core scores (10%-15%), the 1950X is around 35% faster for multi-core workloads. Content creators, and other core intensive task masters will not be disappointed. [Aug '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) December 2018 CPU Rankings.

We calculate effective speed which measures real world performance for typical consumers. Effective speed is adjusted by current prices to yield a value for money rating which is geared towards gamers. 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 freeware 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 upgrades.

UserBenchmark of the month

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.
  • - 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.
  • - Share your opinion by voting.

 Frequently Asked Questions

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $330Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $229Samsung 850 Evo 500GB $100
Intel Core i5-8600K $243Nvidia GTX 1080-Ti $770Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $130SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback