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IntelBX80684I58400

8 Cores, 16 Threads @3.4GHz, Zen.
Release date: Q1 2017.

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

Real World Speed
Performance profile from 75,031 user samples
34,382 User Benchmarks
Best Bench: 99% Base clock 3.8 GHz, turbo 4.15 GHz (avg)
Worst Bench: 76% Base clock 3.4 GHz, turbo 3.4 GHz (avg)
Poor: 76% Great: 99%
SPEED RANK: 36th / 1129
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 85%
Aircraft carrier
Workstation
Workstation 95%
Nuclear submarine
40,649 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: 34th / 1129
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 64%
Destroyer
Effective Speed
Effective CPU Speed
88.4 % 88.8 % +0%
SC Mixed
Avg. Single Core Mixed Speed
105 Pts 117 Pts Slightly faster single-core speed.
+11%
QC Mixed
Avg. Quad Core Mixed Speed
412 Pts 451 Pts Slightly faster quad-core speed.
+9%
MC Mixed
Avg. Multi Core Mixed Speed
1167 Pts Much faster multi-core speed.
+79%
651 Pts
SC Mixed
OC Single Core Mixed Speed
116 Pts 122 Pts Slightly faster OC single-core speed.
+5%
QC Mixed
OC Quad Core Mixed Speed
467 Pts 476 Pts +2%
MC Mixed
OC Multi Core Mixed Speed
1322 Pts Hugely faster OC multi-core speed.
+89%
701 Pts
Market Share
Based on 11,488,201 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.74 % 1.23 % Much higher market share.
+66%
Value
Value For Money
99.2 % 102 % +3%
User Rating
UBM User Rating
107 % 115 % Slightly more popular.
+7%
Price
Price (score)
$215 $202 Slightly cheaper.
+6%
Age
Newest
19 Months 12 Months Much more recent.
+37%
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
112 Pts 118 Pts Slightly faster single-core int speed.
+5%
SC Float
Single Core Floating Point Speed
122 Pts 128 Pts +5%
QC Int
Quad Core Integer Speed
446 Pts 460 Pts +3%
QC Float
Quad Core Floating Point Speed
485 Pts 499 Pts +3%
MC Int
Multi Core Integer Speed
1279 Pts Hugely faster multi-core int speed.
+89%
676 Pts
MC Float
Multi Core Floating Point Speed
1333 Pts Hugely faster multi-core fp speed.
+81%
738 Pts
Series
CPU Architecture
Zen Coffee Lake
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]

MORE DETAILS

Processor Rankings (Price vs Performance) October 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.
  • 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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  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
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CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $109Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $115
Intel Core i7-7700K $355AMD RX 480 $280Samsung 850 Pro 256GB $163
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