IntelBX80684I78700K
IntelBX80684I78700

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

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

Real World Speed
Performance profile from 920,723 user samples
665,630 User Benchmarks
Best Bench: 102% Base clock 3.7 GHz, turbo 5.2 GHz (avg)
Worst Bench: 80% Base clock 3.7 GHz, turbo 0.85 GHz (avg)
Poor: 80% Great: 102%
SPEED RANK: 49th / 1316
Gaming
Gaming 92%
Nuclear submarine
Desktop
Desktop 94%
Nuclear submarine
Workstation
Workstation 83%
Aircraft carrier
255,093 User Benchmarks
Best Bench: 96% Base clock 3.2 GHz, turbo 4.3 GHz (avg)
Worst Bench: 77% Base clock 3.2 GHz, turbo 4 GHz (avg)
Poor: 77% Great: 96%
SPEED RANK: 57th / 1316
Gaming
Gaming 89%
Aircraft carrier
Desktop
Desktop 91%
Nuclear submarine
Workstation
Workstation 80%
Aircraft carrier
Effective Speed
Effective CPU Speed
92.3 % +3% 89.4 %
Memory
Avg. Memory Latency
92.1 Pts +2% 90 Pts
1-Core
Avg. Single Core Mixed Speed
133 Pts +4% 128 Pts
2-Core
Avg. Dual Core Mixed Speed
261 Pts +4% 250 Pts
4-Core
Avg. Quad Core Mixed Speed
498 Pts +4% 478 Pts
8-Core
Avg. Octa Core Mixed Speed
802 Pts +4% 770 Pts
Memory
OC Memory Latency
97.1 Pts +1% 96.1 Pts
1-Core
OC Single Core Mixed Speed
151 Pts Faster OC single-core speed.
+11%
136 Pts
2-Core
OC Dual Core Mixed Speed
299 Pts Faster OC dual-core speed.
+11%
269 Pts
4-Core
OC Quad Core Mixed Speed
585 Pts Faster OC quad-core speed.
+11%
529 Pts
8-Core
OC Octa Core Mixed Speed
938 Pts Slightly faster OC octa-core speed.
+9%
862 Pts
Market Share
Based on 44,980,860 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.29 % Much higher market share.
+55%
0.83 %
Value
Value For Money
90.4 % +2% 88.8 %
User Rating
UBM User Rating
81 % More popular.
+12%
72 %
Price
Price (score)
$300 $285 Slightly cheaper.
+5%
Age
Newest
45 Months 45 Months
TDP
Thermal Design Power (TDP)
95 Watts 65 Watts Much more energy efficient.
+32%
Cores
CPU Processing Cores
6 cores 6 cores
Threads
CPU Processing Threads
12 threads 12 threads
Lithography
Manufacturing process
14 nm 14 nm
Base Clock
Base Clock Speed
3.7 GHz Faster base frequency.
+16%
3.2 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz +2% 4.6 GHz
64-Core
OC Multi Core Mixed Speed
1155 Pts Slightly faster OC 64-core speed.
+8%
1065 Pts
64-Core
Avg. Multi Core Mixed Speed
998 Pts +5% 951 Pts
Series
CPU Architecture
Coffee Lake Coffee Lake
Socket
Motherboard Socket
FCLGA1151 FCLGA1151
Graphics
Integrated Graphics
UHD 630 UHD 630
Max Turbo Frequency
Max Turbo Frequency
4.70 GHz 4.60 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2015C (65W)

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 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]

MORE DETAILS

Processor Rankings (Price vs Performance) July 2021 CPU Rankings.

We calculate effective speed which measures real world performance for typical users. Effective speed is adjusted by current prices to yield a value for money rating. 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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  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - SkillBench (space shooter) tests user input accuracy.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.

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