IntelBX80684I78700K
IntelBX80677I37350K

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

2 Cores, 4 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 330,553 user samples
328,671 User Benchmarks
Best Bench: 123% Base clock 3.7 GHz
Worst Bench: 91% Base clock 3.7 GHz, turbo 3.7 GHz (avg)
Poor: 91% Great: 123%
SPEED RANK: 25th / 1173
Gaming
Gaming 107%
UFO
Desktop
Desktop 105%
UFO
Workstation
Workstation 94%
Nuclear submarine
1,882 User Benchmarks
Best Bench: 83% Base clock 4.2 GHz, turbo 5.2 GHz (avg)
Worst Bench: 54% Base clock 4.2 GHz, turbo 4.2 GHz (avg)
Poor: 54% Great: 83%
SPEED RANK: 147th / 1173
Gaming
Gaming 72%
Battleship
Desktop
Desktop 81%
Aircraft carrier
Workstation
Workstation 43%
Speed boat
Effective Speed
Effective CPU Speed
107 % Much faster effective speed.
+50%
71.5 %
SC Mixed
Avg. Single Core Mixed Speed
138 Pts Slightly faster single-core speed.
+11%
124 Pts
QC Mixed
Avg. Quad Core Mixed Speed
520 Pts Much faster quad-core speed.
+58%
329 Pts
MC Mixed
Avg. Multi Core Mixed Speed
1057 Pts Hugely faster multi-core speed.
+211%
340 Pts
SC Mixed
OC Single Core Mixed Speed
155 Pts Slightly faster OC single-core speed.
+8%
144 Pts
QC Mixed
OC Quad Core Mixed Speed
606 Pts Much faster OC quad-core speed.
+57%
386 Pts
MC Mixed
OC Multi Core Mixed Speed
1217 Pts Hugely faster OC multi-core speed.
+210%
392 Pts
Market Share
Based on 18,583,852 CPUs tested.
Market Share
Market Share (trailing 30 days)
2.25 % Insanely higher market share.
+22,400%
0.01 %
Value
Value For Money
100 % Slightly better value.
+11%
90.4 %
User Rating
UBM User Rating
158 % Hugely more popular.
+155%
62 %
Price
Price (score)
$350 $156 Much cheaper.
+55%
Age
Newest
21 Months Much more recent.
+30%
30 Months
TDP
Thermal Design Power (TDP)
95 Watts 60 Watts Much more energy efficient.
+37%
Cores
CPU Processing Cores
6 cores Hugely higher core count.
+200%
2 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+200%
4 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz 4.2 GHz Slightly faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
4.7 GHz Slightly faster turbo frequency.
+12%
4.2 GHz
SC Int
Single Core Integer Speed
150 Pts Slightly faster single-core int speed.
+6%
141 Pts
SC Float
Single Core Floating Point Speed
159 Pts Slightly faster single-core fp speed.
+6%
150 Pts
QC Int
Quad Core Integer Speed
594 Pts Much faster quad-core int speed.
+67%
355 Pts
QC Float
Quad Core Floating Point Speed
629 Pts Much faster quad-core fp speed.
+52%
415 Pts
MC Int
Multi Core Integer Speed
1111 Pts Hugely faster multi-core int speed.
+212%
356 Pts
MC Float
Multi Core Floating Point Speed
1306 Pts Hugely faster multi-core fp speed.
+213%
417 Pts
Series
CPU Architecture
Coffee Lake Kaby Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 HD 630
Launch Date
Launch Date
Q4'17 Q1'17
Cache
Cache
12 MB 4 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
N/A $168.00 - $179.00
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015D (130W)
Memory Types
Memory Types
DDR4-2666 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
350 MHz 350.00 MHz
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
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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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

The Intel Core i3-7350K is Intel’s first unlocked i3 processor. The base clock of 4.2 GHz on the 7350K is matched only by the flagship i7-7700K. Consequently for desktop applications and the vast majority of tasks that rely primarily on single core performance the 7350K excels. The i3-7350K’s key feature is an unlocked multiplier which should allow a comfortable overclock (on air) to 4.8 GHz. This makes the 7350K far better suited to desktop workloads than any other non-K CPU. The Achilles heel of only having two physical cores means that for tasks that can use more than two cores such as video encoding or software development, the 7350K lags behind its quad core counterparts. For typical desktop computing such as email, browsing with multiple tabs, office documents and playing the majority of games the i3-7350K is a viable option, but at current prices it’s bested by both the i5-7600K and i7-7700K which offer far better value for money. [Jan '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 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.
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CPUGPUSSD
Intel Core i7-8700K $350Nvidia GTX 1070 $400Samsung 850 Evo 250GB $104
AMD Ryzen 5 2600 $127Nvidia GTX 1060-6GB $250Samsung 850 Evo 500GB $103
AMD Ryzen 7 2700X $252Nvidia GTX 1080-Ti $750Samsung 850 Pro 256GB $97
HDDRAMUSB
Seagate Barracuda 1TB (2016) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $70SanDisk Extreme 64GB $128
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $728SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $74SanDisk Ultra Fit 32GB $12
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