IntelBX80684I99900K
IntelBX80662I76700K

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

4 Cores, 8 Threads @4.0GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 343,568 user samples
48,146 User Benchmarks
Best Bench: 131% Base clock 3.6 GHz, turbo 5.2 GHz (avg)
Worst Bench: 96% Base clock 3.6 GHz, turbo 3.6 GHz (avg)
Poor: 96% Great: 131%
SPEED RANK: 7th / 1158
Gaming
Gaming 121%
UFO
Desktop
Desktop 117%
UFO
Workstation
Workstation 124%
UFO
295,422 User Benchmarks
Best Bench: 104% Base clock 4 GHz, turbo 4.8 GHz (avg)
Worst Bench: 72% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 72% Great: 104%
SPEED RANK: 55th / 1158
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 65%
Destroyer
Effective Speed
Effective CPU Speed
121 % Much faster effective speed.
+37%
87.9 %
SC Mixed
Avg. Single Core Mixed Speed
145 Pts Faster single-core speed.
+17%
124 Pts
QC Mixed
Avg. Quad Core Mixed Speed
567 Pts Much faster quad-core speed.
+32%
430 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1506 Pts Hugely faster multi-core speed.
+131%
653 Pts
SC Mixed
OC Single Core Mixed Speed
156 Pts Slightly faster OC single-core speed.
+9%
143 Pts
QC Mixed
OC Quad Core Mixed Speed
618 Pts Faster OC quad-core speed.
+18%
524 Pts
MC Mixed
OC Multi Core Mixed Speed
1663 Pts Hugely faster OC multi-core speed.
+119%
760 Pts
Market Share
Based on 17,039,024 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.14 % Much higher market share.
+40%
1.53 %
Value
Value For Money
102 % Better value.
+16%
87.7 %
User Rating
UBM User Rating
77 % 84 % Slightly more popular.
+9%
Price
Price (score)
$460 $293 Much cheaper.
+36%
Age
Newest
7 Months Hugely more recent.
+84%
45 Months
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
8 cores Hugely higher core count.
+100%
4 cores
Threads
CPU Processing Threads
16 threads Hugely higher thread count.
+100%
8 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.6 GHz 4 GHz Slightly faster base frequency.
+11%
Turbo Clock
Turbo Clock Speed
5 GHz Faster turbo frequency.
+19%
4.2 GHz
SC Int
Single Core Integer Speed
152 Pts Slightly faster single-core int speed.
+9%
139 Pts
SC Float
Single Core Floating Point Speed
160 Pts Slightly faster single-core fp speed.
+9%
147 Pts
QC Int
Quad Core Integer Speed
601 Pts Faster quad-core int speed.
+16%
516 Pts
QC Float
Quad Core Floating Point Speed
639 Pts Faster quad-core fp speed.
+16%
551 Pts
MC Int
Multi Core Integer Speed
1505 Pts Hugely faster multi-core int speed.
+118%
690 Pts
MC Float
Multi Core Floating Point Speed
1765 Pts Hugely faster multi-core fp speed.
+117%
813 Pts
Series
CPU Architecture
Coffee Lake Skylake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 530
Launch Date
Launch Date
Q4'18 Q3'15
Cache
Cache
16 MB SmartCache 8 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
$488.00 - $499.00 $339.00 - $350.00
Memory Types
Memory Types
DDR4-2666 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth
41.6 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 530
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.15 GHz
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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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 Core i7-6700K is Intel's latest "Skylake" flagship processor. It replaces the hugely successful i7-4790K and takes the crown as the fastest mainstream consumer CPU available. Comparing performance and specs between the 4790K and 6700K shows that the configuration is largely unchanged (same base clocks, cores, threads) but the improved manufacturing process (14nm) brings a small reduction in TDP and a performance improvement of 8%; almost exactly the same jump as between the Ivy Bridge 3770K and Haswell 4770K. Owners of any unlocked-K Intel CPU from Sandy Bridge or onwards still have no real reason to upgrade as the performance improvements are largely academic but the i7-6700K will be the CPU of choice for the vast majority of top end PC builds in 2015. [Aug '15 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) May 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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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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  • - CPU tests include: integer, floating and string.
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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.
  • - See speed test results from other users.
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CPUGPUSSD
Intel Core i7-8700K $345Nvidia GTX 1070 $380Samsung 850 Evo 250GB $92
AMD Ryzen 5 2600 $148Nvidia GTX 1060-6GB $208Samsung 850 Evo 500GB $99
AMD Ryzen 5 1600 $110Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 64GB $128
WD Blue 1TB (2012) $40G.SKILL Trident Z DDR4 3200 C14 4x16GB $651SanDisk Extreme 32GB $48
Seagate Barracuda 3TB (2016) $73Corsair Vengeance LPX DDR4 3200 C16 2x8GB $85SanDisk Ultra Fit 32GB $12
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