IntelBX80684I78700K
Intel
$281

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

 $281 

2 Cores, 4 Threads @1.6GHz, Haswell.
Release date: Q3 2013.

Real World Speed
Performance profile from 507,259 user samples
465,919 User Benchmarks
Best Bench: 104% Base clock 3.7 GHz, turbo 5.15 GHz (avg)
Worst Bench: 84% Base clock 3.7 GHz, turbo 1.45 GHz (avg)
Poor: 84% Great: 104%
SPEED RANK: 22nd / 1255
Gaming
Gaming 94%
Nuclear submarine
Desktop
Desktop 96%
Nuclear submarine
Workstation
Workstation 85%
Aircraft carrier
41,340 User Benchmarks
Best Bench: 60% Base clock 2.3 GHz, turbo 2.3 GHz (avg)
Worst Bench: 37% Base clock 2.3 GHz
Poor: 37% Great: 60%
SPEED RANK: 669th / 1255
Gaming
Gaming 52%
Yacht
Desktop
Desktop 58%
Gunboat
Workstation
Workstation 36%
Jet ski
Effective Speed
Effective CPU Speed
94.4 % Hugely faster effective speed.
+82%
52 %
Memory
Avg. Memory Latency
93.6 Pts Lower memory latency.
+20%
78 Pts
1-Core
Avg. Single Core Mixed Speed
136 Pts Hugely faster single-core speed.
+121%
61.6 Pts
2-Core
Avg. Dual Core Mixed Speed
266 Pts Hugely faster dual-core speed.
+158%
103 Pts
4-Core
Avg. Quad Core Mixed Speed
512 Pts Hugely faster quad-core speed.
+235%
153 Pts
8-Core
Avg. Octa Core Mixed Speed
831 Pts Hugely faster octa-core speed.
+433%
156 Pts
Memory
OC Memory Latency
97.8 Pts Slightly lower OC memory latency.
+7%
91.2 Pts
1-Core
OC Single Core Mixed Speed
154 Pts Hugely faster OC single-core speed.
+103%
75.9 Pts
2-Core
OC Dual Core Mixed Speed
303 Pts Hugely faster OC dual-core speed.
+140%
126 Pts
4-Core
OC Quad Core Mixed Speed
597 Pts Hugely faster OC quad-core speed.
+234%
179 Pts
8-Core
OC Octa Core Mixed Speed
963 Pts Hugely faster OC octa-core speed.
+438%
179 Pts
Market Share
Based on 30,519,955 CPUs tested.
Market Share
Market Share (trailing 30 days)
1.3 % Hugely higher market share.
+584%
0.19 %
Value
Value For Money
88.6 % Much better value.
+71%
51.8 %
User Rating
UBM User Rating
173 % Hugely more popular.
+226%
53 %
Price
Price (score)
$350 $281 Cheaper.
+20%
Age
Newest
33 Months Much more recent.
+60%
82 Months
TDP
Thermal Design Power (TDP)
95 Watts 15 Watts Hugely more energy efficient.
+84%
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 Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.7 GHz Hugely faster base frequency.
+131%
1.6 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz Hugely faster turbo frequency.
+81%
2.6 GHz
64-Core
OC Multi Core Mixed Speed
1195 Pts Hugely faster OC 64-core speed.
+568%
179 Pts
64-Core
Avg. Multi Core Mixed Speed
1034 Pts Hugely faster 64-core speed.
+559%
157 Pts
Series
CPU Architecture
Coffee Lake Haswell
Socket
Motherboard Socket
FCLGA1151 FCBGA1168
Graphics
Integrated Graphics
UHD 630 HD 4400
Launch Date
Launch Date
Q4'17 Q3'13
Cache
Cache
12 MB 3 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2, AVX 2.0
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
N/A $281.00
Max Turbo Frequency
Max Turbo Frequency
4.70 GHz 2.6 GHz
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 16 GB
Memory Types
Memory Types
DDR4-2666 DDR3L 1333/1600, LPDDR3 1333/1600
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics 4400
Graphics Base Frequency
Graphics Base Frequency
350 MHz 200 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1 GHz
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 2 GB
Package Size
Package Size
37.5mm x 37.5mm 40mm x 24mm x 1.5mm
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes No
TSX-NI
Intel® TSX-NI
Yes No
vPro Tech
Intel® vPro™ Technology ‡
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 2.0
PCI Express Configurations
PCI Express Configurations ‡
Up to 1x16 or 2x8 or 1x8+2x4 4x1, 2x4
Max # of PCI Express Lanes
Max # of PCI Express Lanes
16 12

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 i5-4200U is a dual core 4th generation Haswell processor. Specifically designed for tablets and ultrabooks it gives the appropriate balance between performance and battery life. The i5-4200U has integrated HD 4400 graphics which are fine for desktop use but not suited to 3D gaming. With an impressive TDP of just 15 Watts, the 4200U will typically give 6 hours of battery life. Despite the low effective speed of 56 which is 70% below the average of the leaders, when coupled with an SSD the 4200U can give a reasonable user experience. Comparing the 4200U and 4500U shows that the 4500U has 20% faster single-core performance but also costs 40% more. [Nov '14 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 2020 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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How it works

  • - 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.
  • - 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.
  • - Share your opinion by voting.

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