IntelBX80623I72700K
IntelBX80677I77700K

4 Cores, 8 Threads @3.5GHz, Sandy Bridge.
Release date: Q3 2011.

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

Real World Speed
Performance profile from 201,394 user samples
7,980 User Benchmarks
Best Bench: 88% Base clock 3.5 GHz
Worst Bench: 56% Base clock 3.5 GHz, turbo 0.55 GHz (avg)
Poor: 56% Great: 88%
SPEED RANK: 136th / 1129
Gaming
Gaming 70%
Battleship
Desktop
Desktop 72%
Battleship
Workstation
Workstation 51%
Yacht
193,414 User Benchmarks
Best Bench: 110% Base clock 4.2 GHz, turbo 5.1 GHz (avg)
Worst Bench: 81% Base clock 4.2 GHz, turbo 1.35 GHz (avg)
Poor: 81% Great: 110%
SPEED RANK: 22nd / 1129
Gaming
Gaming 96%
Nuclear submarine
Desktop
Desktop 97%
Nuclear submarine
Workstation
Workstation 71%
Battleship
Effective Speed
Effective CPU Speed
70.3 % 96.2 % Much faster effective speed.
+37%
SC Mixed
Avg. Single Core Mixed Speed
101 Pts 136 Pts Much faster single-core speed.
+35%
QC Mixed
Avg. Quad Core Mixed Speed
342 Pts 469 Pts Much faster quad-core speed.
+37%
MC Mixed
Avg. Multi Core Mixed Speed
506 Pts 724 Pts Much faster multi-core speed.
+43%
SC Mixed
OC Single Core Mixed Speed
122 Pts 153 Pts Faster OC single-core speed.
+25%
QC Mixed
OC Quad Core Mixed Speed
448 Pts 553 Pts Faster OC quad-core speed.
+23%
MC Mixed
OC Multi Core Mixed Speed
626 Pts 811 Pts Faster OC multi-core speed.
+30%
Market Share
Based on 11,480,129 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.09 % 2.04 % Insanely higher market share.
+2,167%
Value
Value For Money
69.7 % 88.9 % Better value.
+28%
User Rating
UBM User Rating
59 % 134 % Hugely more popular.
+127%
Price
Price (score)
$298 Cheaper.
+17%
$360
Age
Newest
85 Months 21 Months Much more recent.
+75%
TDP
Thermal Design Power (TDP)
95 Watts 91 Watts +4%
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
32 nm 14 nm Much newer manufacturing.
+56%
Base Clock
Base Clock Speed
3.5 GHz 4.2 GHz Faster base frequency.
+20%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.5 GHz Faster turbo frequency.
+15%
SC Int
Single Core Integer Speed
122 Pts 148 Pts Faster single-core int speed.
+21%
SC Float
Single Core Floating Point Speed
122 Pts 157 Pts Faster single-core fp speed.
+29%
QC Int
Quad Core Integer Speed
446 Pts 532 Pts Faster quad-core int speed.
+19%
QC Float
Quad Core Floating Point Speed
451 Pts 574 Pts Faster quad-core fp speed.
+27%
MC Int
Multi Core Integer Speed
603 Pts 745 Pts Faster multi-core int speed.
+24%
MC Float
Multi Core Floating Point Speed
624 Pts 869 Pts Much faster multi-core fp speed.
+39%
Series
CPU Architecture
Sandy Bridge Kaby Lake
Socket
Motherboard Socket
LGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 3000 HD 630
Launch Date
Launch Date
Q4'11 Q1'17
Cache
Cache
8 MB SmartCache 8 MB
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Lithography
Lithography
32 nm 14 nm
Recommended Price
Recommended Customer Price
N/A $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 3000 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
1.35 GHz 1.15 GHz
PCI Express Revision
PCI Express Revision
2.0 3.0

More specs » More specs »
ADVERTISEMENT

The Core i7-2700K is a 3.5GHz Sandy Bridge processor. Sporting four cores and eight threads the 2700K has a strong performance profile, even by today's standards. Comparing the 2700K and the 4770K shows that although the 4770K is two generations and nearly two years newer there is still only around 7% separating the processors in terms of overall calculation throughput. The 4770K does have a 12% lower TDP and it's also compatible with Intel's latest platform so as a new purchase it is the clear winner, but owners of the 2700K are only missing out on marginally better performance. [Mar '14 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) October 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]

ADVERTISEMENT

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

 Best User Rated

The Best.
CPUGPUSSD
Intel Core i7-8700K $370Nvidia GTX 1070 $329Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $105
Intel Core i7-7700K $360AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
Seagate Barracuda 1TB (2016) $45Corsair Vengeance LPX DDR4 3000 C15 2x8GB $140SanDisk Extreme 64GB $42
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $869SanDisk Extreme 32GB $30
Seagate Barracuda 2TB (2016) $55Corsair Vengeance LPX DDR4 3200 C16 2x8GB $145SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback