IntelBX80684I99900K
IntelBX80684I78700K

8 Cores, 16 Threads @3.6GHz, Coffee Lake.
Release date: Q4 2018.

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

Real World Speed
Performance profile from 270,527 user samples
19,771 User Benchmarks
Best Bench: 131% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 94% Base clock 3.6 GHz, turbo 1.15 GHz (avg)
Poor: 94% Great: 131%
SPEED RANK: 8th / 1146
Gaming
Gaming 120%
UFO
Desktop
Desktop 116%
UFO
Workstation
Workstation 124%
UFO
250,756 User Benchmarks
Best Bench: 125% Base clock 3.7 GHz, turbo 5.2 GHz (avg)
Worst Bench: 92% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 92% Great: 125%
SPEED RANK: 21st / 1146
Gaming
Gaming 108%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 95%
Nuclear submarine
Effective Speed
Effective CPU Speed
120 % Slightly faster effective speed.
+11%
108 %
SC Mixed
Avg. Single Core Mixed Speed
144 Pts +4% 138 Pts
QC Mixed
Avg. Quad Core Mixed Speed
564 Pts Slightly faster quad-core speed.
+7%
525 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1502 Pts Much faster multi-core speed.
+39%
1077 Pts
SC Mixed
OC Single Core Mixed Speed
156 Pts +1% 155 Pts
QC Mixed
OC Quad Core Mixed Speed
618 Pts +0% 615 Pts
MC Mixed
OC Multi Core Mixed Speed
1662 Pts Much faster OC multi-core speed.
+34%
1238 Pts
Market Share
Based on 14,720,379 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.58 % 2.86 % Hugely higher market share.
+81%
Value
Value For Money
95.8 % 99.9 % +4%
User Rating
UBM User Rating
65 % 161 % Hugely more popular.
+148%
Price
Price (score)
$530 $360 Much cheaper.
+32%
Age
Newest
3 Months Hugely more recent.
+81%
16 Months
TDP
Thermal Design Power (TDP)
95 Watts 95 Watts
Cores
CPU Processing Cores
8 cores Much higher core count.
+33%
6 cores
Threads
CPU Processing Threads
16 threads Much higher thread count.
+33%
12 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 3.7 GHz +3%
Turbo Clock
Turbo Clock Speed
5 GHz Slightly faster turbo frequency.
+6%
4.7 GHz
SC Int
Single Core Integer Speed
151 Pts 151 Pts
SC Float
Single Core Floating Point Speed
160 Pts 160 Pts
QC Int
Quad Core Integer Speed
601 Pts +1% 598 Pts
QC Float
Quad Core Floating Point Speed
639 Pts +0% 636 Pts
MC Int
Multi Core Integer Speed
1508 Pts Much faster multi-core int speed.
+34%
1128 Pts
MC Float
Multi Core Floating Point Speed
1764 Pts Much faster multi-core fp speed.
+34%
1320 Pts
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Launch Date
Launch Date
Q4'18 Q4'17
Cache
Cache
16 MB SmartCache 12 MB
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price
$488.00 - $499.00 N/A
Thermal Solution Specification
Thermal Solution Specification
PCG 2015D (130W) PCG 2015C (130W)
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4 Up to 1x16 or 2x8 or 1x8+2x4

More specs » More specs »
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Intel’s new consumer flagship CPU for 2018 is the i9-9900K, an 8 core, 16 thread, unlocked 9th generation Intel core desktop processor. It is based on the third round of optimization of Intel’s 14nm Coffee Lake architecture, which in this iteration, yields more cores. This is a retort to AMD’s 8 core 16 thread Ryzen 7 processors that launched in Q2 2018, to fill the gap before Intel releases it’s 10nm Cannon Lake based CPUs in, perhaps, late 2019. In direct proportion to the increased number of cores, average multi-core benchmarks are around 33% higher on the 8 core 9900K than the previous generation 6 core 8700K. The i9-9900K has a base frequency of 3.6 GHz, ramping up to an all-core turbo boost frequency of 4.7 GHz and a single-core turbo boost speed of 5.0 GHz (the highest frequency achieved yet from this class of Intel CPU). It features 16 MB of cache, a 95W TDP and Intel UHD graphics 630. The 9900K is compatible with the new Z390 chipset from Intel, and subject to a BIOS update, is also compatible with the Z370 chipset. This premium CPU is expected to retail at $500, which compares to around $300 for the 8 core, 16 thread Ryzen 7 2700X. Although the 9900K has around a 16% effective speed advantage over the 2700X, the Ryzen 2700X offers better value for money for most users. [Oct '18 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) 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 $336Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $149Nvidia GTX 1060-6GB $230Samsung 850 Evo 500GB $105
Intel Core i5-8600K $260Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $43Corsair Vengeance LPX DDR4 3000 C15 2x8GB $115SanDisk Extreme 64GB $43
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $750SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $41Corsair Vengeance LPX DDR4 3200 C16 2x8GB $126SanDisk Ultra Fit 32GB $12
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