AMDYD170XBCAEWOF
IntelBX80684I58400

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

Real World Speed
Performance profile from 34,715 user samples
24,809 User Benchmarks
Best Bench: 100% Base clock 4.1 GHz, turbo 4.9 GHz (avg)
Worst Bench: 80% Base clock 3.4 GHz, turbo 0.55 GHz (avg)
Poor: 80% Great: 100%
SPEED RANK: 35th / 1089
Gaming
Gaming 90%
Aircraft carrier
Desktop
Desktop 87%
Aircraft carrier
Workstation
Workstation 96%
Nuclear submarine
9,906 User Benchmarks
Best Bench: 96% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Worst Bench: 85% Base clock 2.8 GHz, turbo 3.8 GHz (avg)
Poor: 85% Great: 96%
SPEED RANK: 30th / 1089
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 67%
Battle cruiser
Effective Speed
Effective CPU Speed
89.9 % 92 % +2%
SC Mixed
Avg. Single Core Mixed Speed
107 Pts 120 Pts Slightly faster single-core speed.
+12%
QC Mixed
Avg. Quad Core Mixed Speed
418 Pts 467 Pts Slightly faster quad-core speed.
+12%
MC Mixed
Avg. Multi Core Mixed Speed
1187 Pts Much faster multi-core speed.
+73%
686 Pts
SC Mixed
OC Single Core Mixed Speed
117 Pts 125 Pts Slightly faster OC single-core speed.
+7%
QC Mixed
OC Quad Core Mixed Speed
466 Pts 487 Pts +5%
MC Mixed
OC Multi Core Mixed Speed
1331 Pts Hugely faster OC multi-core speed.
+84%
722 Pts
Market Share
Based on 8,441,859 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.77 % 1.11 % Much higher market share.
+44%
Value
Value For Money
93.2 % 110 % Better value.
+19%
User Rating
UBM User Rating
100 % 107 % Slightly more popular.
+7%
Price
Price (score)
$265 $179 Much cheaper.
+32%
Age
Newest
13 Months 6 Months Much more recent.
+54%
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
8 cores Much higher core count.
+33%
6 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+167%
6 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.4 GHz Faster base frequency.
+21%
2.8 GHz
Turbo Clock
Turbo Clock Speed
3.8 GHz 4 GHz Slightly faster turbo frequency.
+5%
SC Int
Single Core Integer Speed
113 Pts 122 Pts Slightly faster single-core int speed.
+8%
SC Float
Single Core Floating Point Speed
122 Pts 129 Pts Slightly faster single-core fp speed.
+6%
QC Int
Quad Core Integer Speed
449 Pts 475 Pts Slightly faster quad-core int speed.
+6%
QC Float
Quad Core Floating Point Speed
483 Pts 503 Pts +4%
MC Int
Multi Core Integer Speed
1290 Pts Hugely faster multi-core int speed.
+83%
703 Pts
MC Float
Multi Core Floating Point Speed
1338 Pts Much faster multi-core fp speed.
+80%
744 Pts
Series
CPU Architecture
Zen (2017) Coffee Lake (2017)
Socket
Motherboard Socket
AM4 FCLGA1151
Graphics
Integrated Graphics
None UHD 630
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The AMD Ryzen 7 1700X isn't due for release until next week but two of our users has already submitted benchmarks. Comparing the quad and single core scores from our samples shows a relative 4.3% boost on the single core score so it’s possible that turbo wasn’t fully engaged (12% turbo boost expected). These preliminary results are seriously impressive as they put Zen’s IPC between 0% and 9% below Intel’s Kaby Lake. Even in the worst case scenario these results are still impressive. Comparing Intel’s $1,000 6900K and the 1700X shows that AMD delivers comparable performance for half the price! A shake-up of the CPU market will unfold as Zen rolls out. If Ryzen CPUs can overclock to 4.6+ GHz they will likely dominate the entire market putting a very welcome end to the monotonous tick-tock of recent years. [Feb '17 CPUPro]

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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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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.
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.

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How it works

  • - Download and run UserBenchMark (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - 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.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $80
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $300Samsung 850 Evo 500GB $137
AMD Ryzen 5 1600 $170AMD RX 480 $350Samsung 850 Pro 256GB $158
HDDRAMUSB
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Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $957SanDisk Extreme 32GB $45
Seagate Barracuda 2TB (2016) $36Corsair Vengeance LPX DDR4 3200 C16 2x8GB $195SanDisk Ultra Fit 32GB $12
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