IntelBX80673I97940X
IntelBX80684I78700K

14 Cores, 28 Threads @3.10 GHz, Skylake.
Release date ≈ Q4 2017.

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

Real World Speed
Performance profile from 750,847 user samples
4,560 User Benchmarks
Best Bench: 95% Base clock 3.1 GHz, turbo 4.55 GHz (avg)
Worst Bench: 73% Base clock 3.1 GHz, turbo 0.6 GHz (avg)
Poor: 73% Great: 95%
SPEED RANK: 198th / 1442
Gaming
Gaming 83%
Aircraft carrier
Desktop
Desktop 84%
Aircraft carrier
Workstation
Workstation 100%
Nuclear submarine
746,287 User Benchmarks
Best Bench: 100% Base clock 3.7 GHz, turbo 5.05 GHz (avg)
Worst Bench: 76% Base clock 3.7 GHz, turbo 0.8 GHz (avg)
Poor: 76% Great: 100%
SPEED RANK: 148th / 1442
Gaming
Gaming 88%
Aircraft carrier
Desktop
Desktop 90%
Nuclear submarine
Workstation
Workstation 80%
Battleship
Effective Speed
Effective CPU Speed
83.3 % 88.4 % Slightly faster effective speed.
+6%
Memory
Avg. Memory Latency
76.5 Pts 90.1 Pts Lower memory latency.
+18%
1-Core
Avg. Single Core Speed
124 Pts 128 Pts +3%
2-Core
Avg. Dual Core Speed
246 Pts 249 Pts +1%
4-Core
Avg. Quad Core Speed
482 Pts +3% 466 Pts
8-Core
Avg. Octa Core Speed
947 Pts Faster octa-core speed.
+23%
770 Pts
Memory
OC Memory Latency
88.6 Pts 96.5 Pts Slightly lower OC memory latency.
+9%
1-Core
OC Single Core Speed
141 Pts 148 Pts +5%
2-Core
OC Dual Core Speed
282 Pts 292 Pts +4%
4-Core
OC Quad Core Speed
561 Pts +1% 558 Pts
8-Core
OC Octa Core Speed
1112 Pts Faster OC octa-core speed.
+25%
892 Pts
Market Share
Based on 67,712,808 CPUs tested
Market Share
Market Share (trailing 30 days)
0.01 % 1.38 % Insanely higher market share.
+13,700%
Value
Value For Money
65.8 % 98.7 % Much better value.
+50%
User Rating
UBM User Rating
52 % 81 % Much more popular.
+56%
Price
Price (score)
$654 $186 Much cheaper.
+72%
Age
Newest
78+ Months 78 Months
64-Core
OC Multi Core Speed
2625 Pts Hugely faster OC 64-core speed.
+129%
1147 Pts
64-Core
Avg. Multi Core Speed
2179 Pts Hugely faster 64-core speed.
+124%
971 Pts
Launch Date
Launch Date
Q3'17 Q4'17
Cache
Cache
19.25 MB 12 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2, AVX-512 SSE4.1/4.2, AVX2
Recommended Price
Recommended Customer Price
$1387.00 - $1399.00 N/A
Max Turbo Frequency
Max Turbo Frequency
4.30 GHz 4.70 GHz
Thermal Solution Specification
Thermal Solution Specification
PCG 2017X PCG 2015C (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
128 GB 64 GB
Memory Channels
Max # of Memory Channels
4 2
Max # of PCI Express Lanes
Max # of PCI Express Lanes
44 16

More specs » More specs »
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Guys, this is for workstation, not gaming. [Oct '21 Gamejang]

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) April 2024 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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How it works

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  • - CPU tests include: integer, floating and string
  • - GPU tests include: six 3D game simulations
  • - Drive tests include: read, write, sustained write and mixed IO
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  • - Reports are generated and presented on userbenchmark.com
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 Frequently Asked Questions

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The Best.
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Intel Core i5-12600K $184Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $40SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $35Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $51G.SKILL Trident Z DDR4 3200 C14 4x16GB $351SanDisk Ultra Fit 32GB $16
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