IntelBX80684I58600K
IntelBX80684I78700K

6 Cores, 6 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2017.

6 Cores, 12 Threads @3.7GHz, Coffee Lake.
Release date: Q4 2017.

Real World Speed
Performance profile from 277,052 user samples
74,099 User Benchmarks
Best Bench: 120% Base clock 3.6 GHz, turbo 4.2 GHz (avg)
Worst Bench: 88% Base clock 3.6 GHz, turbo 0.8 GHz (avg)
Poor: 88% Great: 120%
SPEED RANK: 24th / 1144
Gaming
Gaming 101%
UFO
Desktop
Desktop 98%
Nuclear submarine
Workstation
Workstation 74%
Battleship
202,953 User Benchmarks
Best Bench: 124% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 91% Base clock 3.7 GHz, turbo 1.5 GHz (avg)
Poor: 91% Great: 124%
SPEED RANK: 21st / 1144
Gaming
Gaming 107%
UFO
Desktop
Desktop 104%
UFO
Workstation
Workstation 95%
Nuclear submarine
Effective Speed
Effective CPU Speed
101 % 107 % Slightly faster effective speed.
+5%
SC Mixed
Avg. Single Core Mixed Speed
132 Pts 136 Pts +3%
QC Mixed
Avg. Quad Core Mixed Speed
516 Pts 517 Pts +0%
MC Mixed
Avg. Multi Core Mixed Speed
744 Pts 1072 Pts Much faster multi-core speed.
+44%
SC Mixed
OC Single Core Mixed Speed
156 Pts +1% 155 Pts
QC Mixed
OC Quad Core Mixed Speed
618 Pts +1% 610 Pts
MC Mixed
OC Multi Core Mixed Speed
894 Pts 1237 Pts Much faster OC multi-core speed.
+38%
Market Share
Based on 13,021,643 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.37 % 3.62 % Hugely higher market share.
+164%
Value
Value For Money
106 % Slightly better value.
+9%
97.6 %
User Rating
UBM User Rating
138 % 154 % Slightly more popular.
+12%
Price
Price (score)
$260 Cheaper.
+30%
$370
Age
Newest
14 Months 14 Months
TDP
Thermal Design Power (TDP)
95 Watts 95 Watts
Cores
CPU Processing Cores
6 cores 6 cores
Threads
CPU Processing Threads
6 threads 12 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.7 GHz +3%
Turbo Clock
Turbo Clock Speed
4.3 GHz 4.7 GHz Slightly faster turbo frequency.
+9%
SC Int
Single Core Integer Speed
151 Pts 151 Pts
SC Float
Single Core Floating Point Speed
163 Pts +3% 159 Pts
QC Int
Quad Core Integer Speed
588 Pts 590 Pts +0%
QC Float
Quad Core Floating Point Speed
649 Pts +3% 629 Pts
MC Int
Multi Core Integer Speed
845 Pts 1130 Pts Much faster multi-core int speed.
+34%
MC Float
Multi Core Floating Point Speed
960 Pts 1318 Pts Much faster multi-core fp speed.
+37%
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Cache
Cache
9 MB 12 MB
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.20 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes

More specs » More specs »
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The unlocked hex-core i5-8600K from Intel’s latest Coffee Lake generation of processors is the new flagship of the i5 series, succeeding the Kaby Lake quad-core i5-7600K. The 8th generation of processors brings the largest performance uplift since Sandy Bridge by adding more cores at each of the i3, i5 and i7 product lines. Like the other Coffee Lake processors, the i5-8600K is built upon optimized 14nm architecture, marginally improved upon from Kaby Lake and Skylake. The 8600K has a 95W TDP and a nominal stock clock of 3.6 GHz, which boosts to 4.1 GHz for all six cores, 4.2 GHz for dual/quad and 4.3 GHz for single core. Early benchmarks put the i5-8600K’s effective speed 15% ahead of the i5-7600K. A 50% increase in multi-core speed is explained by two additional cores and thanks to the quad-core clock bump from 4 GHz on the 7600K to 4.2 GHz on the 8600K there is also an additional 5% performance boost across all workloads. All Coffee Lake processors require a 300-series chipset, making a straight CPU upgrade unfeasible despite sharing the same socket as their Z270 predecessors. Even though most games still use less than 4 cores simultaneously, the i5-8600K is a great choice for gamers (especially streamers) but for $80 less, the 8350K which is faster than last years 7600K and only marginally weaker for gaming than the 8600K is certainly well worth considering as well. [Oct '17 CPUPro]

MORE DETAILS

The i7-8700K is Intel’s latest, top of the range, 8th generation Coffee Lake processor. Like Kaby Lake and Sky Lake before that, Coffee Lake is based on Intel’s 14nm architecture which has been slightly optimized on each iteration. Following AMD’s modus operandi, Intel has upped the cores and threads across the range of their CPUs. In previous generations, a 6-core processor would have been a high-end desk-top (HEDT) processor, however the i7-8700K is the first Intel CPU with 6 cores and 12 threads to be classified (and priced) as a mainstream consumer processor. Specifically, the i7-8700K features a base clock speed of 3.7 GHz which boosts to 4.7 GHz (4.5 GHz for the previous generation i7-7700k), 12MB of smart (L3) cache and 2 channels of DDR4 RAM. The majority of the performance improvements over the 7th generation stem from the higher core count which results in a 50% increase in multi-core speed between the i7-7700k and i7-8700k. A new motherboard will need to be factored into the budget when upgrading to the 8700K as it requires a new Intel Z370 chipset which has supposedly been designed to better deliver power to CPUs with a greater number of cores. Also available in this latest release of CPUs is the 6 core 6 thread i5-8600k which is a more rational option (around $100 cheaper) for the vast majority of users that don’t require hyper-threading. Sandy bridge owners can finally justify an upgrade but with the next iteration of AMD's Zen architecture just around the corner the CPU market will be a lot faster moving now that Intel, once again, has to compete. [Sep '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) December 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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CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $335Samsung 850 Evo 250GB $63
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $210Samsung 850 Evo 500GB $90
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $70G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $136SanDisk Ultra Fit 32GB $12
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