IntelBX80684I78700K
IntelBX80646G3258

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

2 Cores, 2 Threads @3.2GHz, Haswell.
Release date: Q2 2014.

Real World Speed
Performance profile from 769,784 user samples
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
23,497 User Benchmarks
Best Bench: 64% Base clock 3.2 GHz, turbo 4.5 GHz (avg)
Worst Bench: 37% Base clock 3.2 GHz, turbo 2.75 GHz (avg)
Poor: 37% Great: 64%
SPEED RANK: 722nd / 1442
Gaming
Gaming 53%
Yacht
Desktop
Desktop 64%
Destroyer
Workstation
Workstation 37%
Jet ski
Effective Speed
Effective CPU Speed
88.4 % Much faster effective speed.
+68%
52.6 %
Memory
Avg. Memory Latency
90.1 Pts Lower memory latency.
+16%
77.4 Pts
1-Core
Avg. Single Core Speed
128 Pts Much faster single-core speed.
+47%
87.3 Pts
2-Core
Avg. Dual Core Speed
249 Pts Much faster dual-core speed.
+57%
159 Pts
4-Core
Avg. Quad Core Speed
466 Pts Hugely faster quad-core speed.
+186%
163 Pts
8-Core
Avg. Octa Core Speed
770 Pts Hugely faster octa-core speed.
+361%
167 Pts
Memory
OC Memory Latency
96.5 Pts +4% 92.9 Pts
1-Core
OC Single Core Speed
148 Pts Faster OC single-core speed.
+23%
120 Pts
2-Core
OC Dual Core Speed
292 Pts Faster OC dual-core speed.
+27%
230 Pts
4-Core
OC Quad Core Speed
558 Pts Hugely faster OC quad-core speed.
+141%
232 Pts
8-Core
OC Octa Core Speed
892 Pts Hugely faster OC octa-core speed.
+284%
232 Pts
Market Share
Based on 67,697,917 CPUs tested
Market Share
Market Share (trailing 30 days)
1.48 % Insanely higher market share.
+∞%
0 %
Value
Value For Money
98.4 % +2% 96.2 %
User Rating
UBM User Rating
81 % Much more popular.
+45%
56 %
Price
Price (score)
$188 $31 Hugely cheaper.
+84%
Age
Newest
78 Months Much more recent.
+34%
119 Months
TDP
Thermal Design Power (TDP)
95 Watts 53 Watts Much more energy efficient.
+44%
Cores
CPU Processing Cores
6 cores Hugely higher core count.
+200%
2 cores
Threads
CPU Processing Threads
12 threads Hugely higher thread count.
+500%
2 threads
Lithography
Manufacturing process
14 nm Much newer manufacturing.
+36%
22 nm
Base Clock
Base Clock Speed
3.7 GHz Faster base frequency.
+16%
3.2 GHz
Turbo Clock
Turbo Clock Speed
4.7 GHz Much faster turbo frequency.
+47%
3.2 GHz
64-Core
OC Multi Core Speed
1147 Pts Hugely faster OC 64-core speed.
+394%
232 Pts
64-Core
Avg. Multi Core Speed
971 Pts Hugely faster 64-core speed.
+485%
166 Pts
Series
CPU Architecture
Coffee Lake Haswell
Socket
Motherboard Socket
FCLGA1151 FCLGA1150
Graphics
Integrated Graphics
UHD 630 HD
Launch Date
Launch Date
Q4'17 Q2'14
Cache
Cache
12 MB 3 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX2 SSE4.1/4.2
Lithography
Lithography
14 nm 22 nm
Recommended Price
Recommended Customer Price
N/A $72.00
Bus Speed
Bus Speed
8 GT/s DMI3 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
PCG 2015C (130W) PCG 2013C
Max Memory Size
Max Memory Size (dependent on memory type)
64 GB 32 GB
Memory Types
Memory Types
DDR4-2666 DDR3-1333, DDR3L-1333 @ 1.5V
ECC Memory Supported
ECC Memory Supported ‡
No Yes
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630 Intel® HD Graphics
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.20 GHz 1.1 GHz
Clear Video HD Tech
Intel® Clear Video HD Technology
Yes No
Graphics Video Max Memory
Graphics Video Max Memory
64 GB 1.7 GB
Turbo Boost Tech
Intel® Turbo Boost Technology ‡
2.0 No
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
Yes No
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
Stable Image Platform Program (SIPP)
Intel® Stable Image Platform Program (SIPP)
Yes No
AES New Instructions
Intel® AES New Instructions
Yes No
Trusted Execution Tech
Intel® Trusted Execution Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
3.0 Up to 3.0
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 G3258 is the first budget Pentium processor to feature an unlocked multiplier. This enables a comfortable overclock to 4.3 GHz using just the stock heat sink and fan. At 4.3 GHz, in terms of single and dual core performance, the G3258 challenges a fully overclocked i7-4790K, the fastest CPU I have seen to date! These results are stunning considering that the G3258 is retailing for around one fifth as much as an i7-4790K. The G3258's Achilles heel is its poor multi-core performance which is over 50% weaker than the group leaders. For the vast majority of users, assuming an overclock of 4.3 GHz, the G3258 is the best value processor on the market by miles. On the other hand, users that encode multi-media or run SLI/Crossfire setups should look elsewhere. [Jul '14 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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  • 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 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 value for money 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
  • - 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

 Frequently Asked Questions

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Intel Core i5-12600K $186Nvidia RTX 4070 $409Samsung 860 Evo 250GB $52
HDDRAMUSB
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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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