IntelBX80623I52400
IntelBX80677I77700K

4 Cores, 4 Threads @3.1GHz, Sandy Bridge.
Release date: Q1 2011.

4 Cores, 8 Threads @4.2GHz, Kaby Lake.
Release date: Q1 2017.

Real World Speed
Performance profile from 261,140 user samples
42,316 User Benchmarks
Best Bench: 65% Base clock 3.6 GHz
Worst Bench: 45% Base clock 3.1 GHz, turbo 3.1 GHz (avg)
Poor: 45% Great: 65%
SPEED RANK: 242nd / 1143
Gaming
Gaming 60%
Gunboat
Desktop
Desktop 59%
Gunboat
Workstation
Workstation 36%
Jet ski
218,824 User Benchmarks
Best Bench: 111% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 83% Base clock 4.2 GHz, turbo 0.35 GHz (avg)
Poor: 83% Great: 111%
SPEED RANK: 31st / 1143
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 71%
Battleship
Effective Speed
Effective CPU Speed
59.6 % 95.7 % Much faster effective speed.
+61%
SC Mixed
Avg. Single Core Mixed Speed
83.3 Pts 136 Pts Much faster single-core speed.
+63%
QC Mixed
Avg. Quad Core Mixed Speed
307 Pts 466 Pts Much faster quad-core speed.
+52%
MC Mixed
Avg. Multi Core Mixed Speed
315 Pts 722 Pts Hugely faster multi-core speed.
+129%
SC Mixed
OC Single Core Mixed Speed
89 Pts 153 Pts Much faster OC single-core speed.
+72%
QC Mixed
OC Quad Core Mixed Speed
338 Pts 562 Pts Much faster OC quad-core speed.
+66%
MC Mixed
OC Multi Core Mixed Speed
340 Pts 815 Pts Hugely faster OC multi-core speed.
+140%
Market Share
Based on 12,819,532 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.56 % 2.02 % Hugely higher market share.
+261%
Value
Value For Money
87.5 % 89.4 % +2%
User Rating
UBM User Rating
64 % 130 % Hugely more popular.
+103%
Price
Price (score)
$105 Much cheaper.
+70%
$350
Age
Newest
95 Months 23 Months Much more recent.
+76%
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
4 threads 8 threads Hugely higher thread count.
+100%
Lithography
Manufacturing process
32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.1 GHz 4.2 GHz Much faster base frequency.
+35%
Turbo Clock
Turbo Clock Speed
3.4 GHz 4.5 GHz Much faster turbo frequency.
+32%
SC Int
Single Core Integer Speed
88.4 Pts 148 Pts Much faster single-core int speed.
+67%
SC Float
Single Core Floating Point Speed
89.3 Pts 158 Pts Much faster single-core fp speed.
+77%
QC Int
Quad Core Integer Speed
340 Pts 537 Pts Much faster quad-core int speed.
+58%
QC Float
Quad Core Floating Point Speed
340 Pts 577 Pts Much faster quad-core fp speed.
+70%
MC Int
Multi Core Integer Speed
340 Pts 746 Pts Hugely faster multi-core int speed.
+119%
MC Float
Multi Core Floating Point Speed
340 Pts 868 Pts Hugely faster multi-core fp speed.
+155%
Series
CPU Architecture
Sandy Bridge Kaby Lake
Socket
Motherboard Socket
LGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 2000 HD 630
Launch Date
Launch Date
Q1'11 Q1'17
Cache
Cache
6 MB SmartCache 8 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Embedded Options Available
Embedded Options Available
Yes No
Lithography
Lithography
32 nm 14 nm
Recommended Price
Recommended Customer Price
$178.00 $339.00 - $350.00
Bus Speed
Bus Speed
5 GT/s DMI 8 GT/s DMI3
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3 1066/1333 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 2000 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
850 MHz 350.00 MHz
# of Displays Supported
# of Displays Supported ‡
2 3
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.1 GHz 1.15 GHz
Hyper-Threading Tech
Intel® Hyper-Threading Technology ‡
No Yes
vPro Tech
Intel® vPro™ Technology ‡
Yes No
PCI Express Revision
PCI Express Revision
2.0 3.0

More specs » More specs »
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Pros: Brilliant value for money. Cons: It's not the 2400k which can be had for just a tiny bit more and offers a lot more flexibility in terms of overclocking. [Apr '12 CPUPro]

MORE DETAILS

The Core i7-7700K is Intel’s flagship Kaby Lake based CPU which is reported to have the same IPC as its predecessor, Skylake. Comparing the 7700K and 6700K shows that both average effective speed and peak overclocked speed are up by 7%. Most of the increase in average effective speed is explained by the 5% boost in base clocks from 4.0 to 4.2 GHz. The improved peak lab speed is attributable to a combination of better overclocking capacity and improvements in Intel’s speedshift technology which make the 7700K slightly more responsive. Kaby Lake also has marginally better HD 630 integrated graphics. The i7-7700K is priced similarly to the i7-6700K so for top end gaming and workstation builds, the 7700K is the clear choice for 2017. AMD’s Ryzen will release later this year so things could change at that time. [Jan '17 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) December 2018 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.
How Fast Is Your CPU? (Bench your build) Size up your PC in less than a minute.

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.

UserBenchmark of the month

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.

 Frequently Asked Questions

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The Best.
CPUGPUSSD
Intel Core i7-8700K $365Nvidia GTX 1070 $335Samsung 850 Evo 250GB $67
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $240Samsung 850 Evo 500GB $98
Intel Core i5-8600K $250Nvidia GTX 1080-Ti $808Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $125SanDisk Extreme 64GB $72
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $830SanDisk Extreme 32GB $48
WD Blue 1TB (2012) $45Corsair Vengeance LPX DDR4 3200 C16 2x8GB $140SanDisk Ultra Fit 32GB $12
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