IntelBX80684I58400
AMDYD192XA8AEWOF

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

12 Cores, 24 Threads @3.5GHz, Zen.
Release date: Q3 2017.

Real World Speed
Performance profile from 74,207 user samples
71,969 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 77% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Poor: 77% Great: 94%
SPEED RANK: 49th / 1147
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
2,238 User Benchmarks
Best Bench: 110% Base clock 4.2 GHz, turbo 4.15 GHz (avg)
Worst Bench: 84% Base clock 3.5 GHz, turbo 0.55 GHz (avg)
Poor: 84% Great: 110%
SPEED RANK: 27th / 1147
Gaming
Gaming 101%
UFO
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 135%
UFO
Effective Speed
Effective CPU Speed
88.8 % 101 % Slightly faster effective speed.
+13%
SC Mixed
Avg. Single Core Mixed Speed
117 Pts +4% 112 Pts
QC Mixed
Avg. Quad Core Mixed Speed
450 Pts +4% 432 Pts
MC Mixed
Avg. Multi Core Mixed Speed
650 Pts 1785 Pts Hugely faster multi-core speed.
+175%
SC Mixed
OC Single Core Mixed Speed
123 Pts +2% 120 Pts
QC Mixed
OC Quad Core Mixed Speed
478 Pts +1% 474 Pts
MC Mixed
OC Multi Core Mixed Speed
699 Pts 2000 Pts Hugely faster OC multi-core speed.
+186%
Market Share
Based on 15,753,406 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.48 % Insanely higher market share.
+2,860%
0.05 %
Value
Value For Money
102 % Slightly better value.
+15%
89.3 %
User Rating
UBM User Rating
115 % Much more popular.
+53%
75 %
Price
Price (score)
$199 Much cheaper.
+50%
$401
Age
Newest
17 Months Slightly more recent.
+11%
19 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+64%
180 Watts
Cores
CPU Processing Cores
6 cores 12 cores Hugely higher core count.
+100%
Threads
CPU Processing Threads
6 threads 24 threads Hugely higher thread count.
+300%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
2.8 GHz 3.5 GHz Faster base frequency.
+25%
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
128 Pts +2% 126 Pts
QC Int
Quad Core Integer Speed
461 Pts +1% 455 Pts
QC Float
Quad Core Floating Point Speed
500 Pts +1% 494 Pts
MC Int
Multi Core Integer Speed
670 Pts 1939 Pts Hugely faster multi-core int speed.
+189%
MC Float
Multi Core Floating Point Speed
739 Pts 2023 Pts Hugely faster multi-core fp speed.
+174%
Series
CPU Architecture
Coffee Lake Zen
Socket
Motherboard Socket
FCLGA1151 TR4
Graphics
Integrated Graphics
UHD 630 None
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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]

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The Ryzen Threadripper 1920X is a 12 core 24 thread CPU, currently second only to the 1950X (16 cores, 32 threads) in AMD’s latest Zen-based line for high end desktop processors. Similarly to the 1950X, it has a base clock speed of 3.5 GHz (3.4 GHz for the 1950X) which can boost to a maximum of 4.0 GHz and features quad channel DDR4 and 64 PCI Express lanes. Also, like the other Threadripper CPUs, the 1920X sits on the latest X399 platform. Intel has a number of processors which outperform the 1920X, such as the i5-7600K which is a quarter of the price and offers around 25% better performance than the 1920X for single and quad core usage (most games only use a maximum of four cores). However, the 1920X is squarely aimed at offering value for money to multi-core workstation users and in this category, the 1920X is closer to competing with Intel’s 15% dearer 10 core, 20 thread i9-7900X. The 8 core, 16 thread 1900X, will shortly be available as the third product in the Threadripper line, featuring a slightly higher base clock of 3.8 GHz. [Aug '17 CPUPro]

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Processor Rankings (Price vs Performance) March 2019 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]

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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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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.

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  • - CPU tests include: integer, floating and string.
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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
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CPUGPUSSD
Intel Core i7-8700K $380Nvidia GTX 1070 $330Samsung 850 Evo 250GB $75
AMD Ryzen 5 1600 $119Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $88
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $105SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $716SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $43Corsair Vengeance LPX DDR4 3200 C16 2x8GB $115SanDisk Ultra Fit 32GB $12
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