IntelBX80684I58400
AMDYD180XBCAEWOF

6 Cores, 6 Threads
@2.8GHz Coffee Lake (2017)

8 Cores, 16 Threads
@3.6GHz Zen (2017)

Real World Speed
Performance profile from 26,861 user samples
9,076 User Benchmarks
Best Bench: 96% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 84% Base clock 2.8 GHz, turbo 2.8 GHz (avg)
Poor: 84% Great: 96%
SPEED RANK: 28th / 1083
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 68%
Battle cruiser
17,785 User Benchmarks
Best Bench: 101% Base clock 4.1 GHz, turbo 3.75 GHz (avg)
Worst Bench: 84% Base clock 3.6 GHz, turbo 2.2 GHz (avg)
Poor: 84% Great: 101%
SPEED RANK: 27th / 1083
Gaming
Gaming 93%
Nuclear submarine
Desktop
Desktop 90%
Aircraft carrier
Workstation
Workstation 100%
Nuclear submarine
Effective Speed
Effective CPU Speed
92.1 % 93.2 % +1%
SC Mixed
Avg. Single Core Mixed Speed
120 Pts Slightly faster single-core speed.
+8%
111 Pts
QC Mixed
Avg. Quad Core Mixed Speed
468 Pts Slightly faster quad-core speed.
+8%
434 Pts
MC Mixed
Avg. Multi Core Mixed Speed
688 Pts 1228 Pts Much faster multi-core speed.
+78%
SC Mixed
OC Single Core Mixed Speed
125 Pts Slightly faster OC single-core speed.
+6%
118 Pts
QC Mixed
OC Quad Core Mixed Speed
488 Pts +3% 472 Pts
MC Mixed
OC Multi Core Mixed Speed
724 Pts 1346 Pts Hugely faster OC multi-core speed.
+86%
Market Share
Based on 8,375,349 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.85 % Higher market share.
+23%
0.69 %
Value
Value For Money
111 % Better value.
+20%
92.2 %
User Rating
UBM User Rating
109 % More popular.
+21%
90 %
Price
Price (score)
$179 Much cheaper.
+40%
$300
Age
Newest
6 Months Much more recent.
+54%
13 Months
TDP
Thermal Design Power (TDP)
65 Watts Much more energy efficient.
+32%
95 Watts
Cores
CPU Processing Cores
6 cores 8 cores Much higher core count.
+33%
Threads
CPU Processing Threads
6 threads 16 threads Hugely higher thread count.
+167%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
2.8 GHz 3.6 GHz Faster base frequency.
+29%
Turbo Clock
Turbo Clock Speed
4 GHz 4 GHz
SC Int
Single Core Integer Speed
122 Pts Slightly faster single-core int speed.
+7%
114 Pts
SC Float
Single Core Floating Point Speed
129 Pts +5% 123 Pts
QC Int
Quad Core Integer Speed
476 Pts +5% 455 Pts
QC Float
Quad Core Floating Point Speed
505 Pts +3% 491 Pts
MC Int
Multi Core Integer Speed
706 Pts 1307 Pts Hugely faster multi-core int speed.
+85%
MC Float
Multi Core Floating Point Speed
750 Pts 1357 Pts Hugely faster multi-core fp speed.
+81%
Series
CPU Architecture
Coffee Lake (2017) Zen (2017)
Socket
Motherboard Socket
FCLGA1151 AM4
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 7 1800X is AMD's flagship Ryzen CPU. Clocked at 3.6 GHz with a turbo frequency of 4.0 GHz (stock) this chip offers a staggering level of multi-core performance. Comparing the 1800X with the Intel i7-6850K shows that the 1800X delivers 25% more multi-core throughput than its more expensive counterpart. Historically AMD's CPU architecture has had a much lower IPC than Intel's and consequently Intel have dominated the CPU market since 2009. Comparing IPC between Intel's Kaby Lake and Ryzen shows a maximum gap of just 9%. A very welcome shake-up of the CPU market will unfold as the remaining Ryzen 5 and Ryzen 3 models are rolled out. For now the 1800X offers workstation users similar processing power to a $1,000 i7-6900K at half the price. [Mar '17 CPUPro]

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Processor Rankings (Price vs Performance) April 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]

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Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical consumers.
  • Best value for money - Value for money is based on real world performance and price.
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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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  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
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  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.

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CPUGPUSSD
Intel Core i7-8700K $26Nvidia GTX 1070 $447Samsung 850 Evo 250GB $80
AMD Ryzen 5 1600 $175Nvidia GTX 1060-6GB $325Samsung 850 Evo 500GB $137
Intel Core i7-7700K $290AMD RX 480 $350Samsung 850 Pro 256GB $163
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $60Corsair Vengeance LPX DDR4 3200 C16 2x8GB $204SanDisk Ultra Fit 32GB $12
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