IntelBX80684I78700
IntelBX80684I58400

6 Cores, 12 Threads @3.2GHz, Coffee Lake.
Release date: Q4 2017.

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

Real World Speed
Performance profile from 125,123 user samples
57,749 User Benchmarks
Best Bench: 109% Base clock 3.2 GHz, turbo 4.3 GHz (avg)
Worst Bench: 88% Base clock 3.2 GHz, turbo 4.3 GHz (avg)
Poor: 88% Great: 109%
SPEED RANK: 25th / 1146
Gaming
Gaming 102%
UFO
Desktop
Desktop 99%
Nuclear submarine
Workstation
Workstation 89%
Aircraft carrier
67,374 User Benchmarks
Best Bench: 94% Base clock 2.8 GHz, turbo 3.85 GHz (avg)
Worst Bench: 80% Base clock 2.8 GHz, turbo 1.5 GHz (avg)
Poor: 80% Great: 94%
SPEED RANK: 45th / 1146
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed
102 % Slightly faster effective speed.
+14%
89.1 %
SC Mixed
Avg. Single Core Mixed Speed
130 Pts Slightly faster single-core speed.
+11%
117 Pts
QC Mixed
Avg. Quad Core Mixed Speed
494 Pts Slightly faster quad-core speed.
+10%
451 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1003 Pts Much faster multi-core speed.
+53%
654 Pts
SC Mixed
OC Single Core Mixed Speed
138 Pts Slightly faster OC single-core speed.
+13%
122 Pts
QC Mixed
OC Quad Core Mixed Speed
532 Pts Slightly faster OC quad-core speed.
+12%
477 Pts
MC Mixed
OC Multi Core Mixed Speed
1084 Pts Much faster OC multi-core speed.
+55%
698 Pts
Market Share
Based on 14,838,267 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.52 % +2% 1.49 %
Value
Value For Money
101 % 106 % Slightly better value.
+5%
User Rating
UBM User Rating
66 % 111 % Much more popular.
+68%
Price
Price (score)
$300 $185 Much cheaper.
+38%
Age
Newest
16 Months 16 Months
TDP
Thermal Design Power (TDP)
65 Watts 65 Watts
Cores
CPU Processing Cores
6 cores 6 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+100%
6 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.2 GHz Slightly faster base frequency.
+14%
2.8 GHz
Turbo Clock
Turbo Clock Speed
4.6 GHz Slightly faster turbo frequency.
+15%
4 GHz
SC Int
Single Core Integer Speed
134 Pts Slightly faster single-core int speed.
+14%
118 Pts
SC Float
Single Core Floating Point Speed
142 Pts Slightly faster single-core fp speed.
+11%
128 Pts
QC Int
Quad Core Integer Speed
518 Pts Slightly faster quad-core int speed.
+13%
460 Pts
QC Float
Quad Core Floating Point Speed
549 Pts Slightly faster quad-core fp speed.
+10%
499 Pts
MC Int
Multi Core Integer Speed
996 Pts Much faster multi-core int speed.
+49%
668 Pts
MC Float
Multi Core Floating Point Speed
1147 Pts Much faster multi-core fp speed.
+55%
739 Pts
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Cache
Cache
12 MB 9 MB
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.05 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No

More specs » More specs »
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The high-end hex core, 12 thread i7-8700 is second in Intel’s line up of 8th generation Coffee Lake CPUs that witnesses an increase in the number of cores at each SKU, as well as further refinement on the 14nm architecture as seen in the 6th and 7th generations. The i7-8700 features a TDP of 65W, 12MB of L3 Cache and 16 PCIe lanes. Although the 8700 has a base clock of 3.2 GHz it has an all core boost of 4.3 GHz and a single core boost of 4.6 GHz. These are unusually high clocks for a non-K SKU, Intel have historically clocked their non-K SKUs around 10% lower than the flagship K variants but with Coffee Lake, the 8700 is almost a match for a stock 8700K. Priced at $320, the i7-8700 offers exceptional single, quad and multi-core processing power to the mainstream market but unfortunately a new 300 series chipset will also need to be factored into the purchase. AMD’s comparably priced Ryzen 7 1700X is an 8 core 16 thread processor which is around 20% faster at multi-threaded tasks, but has around 20% slower single and quad core performance so the choice between these two processors is use case dependant but generally favours Intel for most desktop users whose workloads are typically single or dual core bound.  [Oct '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) February 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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CPUGPUSSD
Intel Core i7-8700K $360Nvidia GTX 1070 $325Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $148Nvidia GTX 1060-6GB $220Samsung 850 Evo 500GB $80
Intel Core i5-8600K $259Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
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WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $120SanDisk Ultra Fit 32GB $12
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