IntelBX80637I73770K
IntelBX80662I56600K

4 Cores, 8 Threads
@3.5GHz Ivy Bridge (2012)

4 Cores, 4 Threads
@3.5GHz Skylake (2015)

Real World Speed
Performance profile from 171,608 user samples
48,725 User Benchmarks
Best Bench: 90% Base clock 5 GHz, turbo 6.95 GHz (avg)
Worst Bench: 57% Base clock 3.5 GHz, turbo 0.2 GHz (avg)
Poor: 57% Great: 90%
SPEED RANK: 104th / 1117
Gaming
Gaming 73%
Battleship
Desktop
Desktop 74%
Battleship
Workstation
Workstation 54%
Yacht
122,883 User Benchmarks
Best Bench: 103% Base clock 3.5 GHz, turbo 4.95 GHz (avg)
Worst Bench: 64% Base clock 3.5 GHz, turbo 0.2 GHz (avg)
Poor: 64% Great: 103%
SPEED RANK: 42nd / 1117
Gaming
Gaming 86%
Aircraft carrier
Desktop
Desktop 83%
Aircraft carrier
Workstation
Workstation 52%
Yacht
Effective Speed
Effective CPU Speed
73 % 85.5 % Faster effective speed.
+17%
SC Mixed
Avg. Single Core Mixed Speed
104 Pts 117 Pts Slightly faster single-core speed.
+12%
QC Mixed
Avg. Quad Core Mixed Speed
355 Pts 444 Pts Faster quad-core speed.
+25%
MC Mixed
Avg. Multi Core Mixed Speed
539 Pts Faster multi-core speed.
+19%
454 Pts
SC Mixed
OC Single Core Mixed Speed
125 Pts 140 Pts Slightly faster OC single-core speed.
+12%
QC Mixed
OC Quad Core Mixed Speed
454 Pts 543 Pts Faster OC quad-core speed.
+20%
MC Mixed
OC Multi Core Mixed Speed
645 Pts Faster OC multi-core speed.
+18%
548 Pts
Market Share
Based on 9,787,711 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.52 % 1.17 % Hugely higher market share.
+125%
Value
Value For Money
60 % 95.7 % Much better value.
+60%
User Rating
UBM User Rating
63 % 68 % Slightly more popular.
+8%
Price
Price (score)
$492 $216 Much cheaper.
+56%
Age
Newest
75 Months 35 Months Much more recent.
+53%
TDP
Thermal Design Power (TDP)
77 Watts More energy efficient.
+15%
91 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads Hugely higher thread count.
+100%
4 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
Base Clock
Base Clock Speed
3.5 GHz 3.5 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz 3.9 GHz
SC Int
Single Core Integer Speed
124 Pts 135 Pts Slightly faster single-core int speed.
+9%
SC Float
Single Core Floating Point Speed
126 Pts 147 Pts Faster single-core fp speed.
+17%
QC Int
Quad Core Integer Speed
446 Pts 525 Pts Faster quad-core int speed.
+18%
QC Float
Quad Core Floating Point Speed
455 Pts 575 Pts Faster quad-core fp speed.
+26%
MC Int
Multi Core Integer Speed
636 Pts Faster multi-core int speed.
+21%
525 Pts
MC Float
Multi Core Floating Point Speed
634 Pts Slightly faster multi-core fp speed.
+10%
575 Pts
Series
CPU Architecture
Ivy Bridge (2012) Skylake (2015)
Socket
Motherboard Socket
FCLGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 4000 HD 530
Launch Date
Launch Date
Q2'12 Q3'15
Cache
Cache
8 MB SmartCache 6 MB SmartCache
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Lithography
Lithography
22 nm 14 nm
Recommended Price
Recommended Customer Price
$332.00 - $342.00 $242.00 - $243.00
Bus Speed
Bus Speed
5 GT/s DMI 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
2011D PCG 2015D (130W)
Max Memory Size
Max Memory Size (dependent on memory type)
32 GB 64 GB
Memory Types
Memory Types
DDR3 1333/1600 DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V
Memory Bandwidth
Max Memory Bandwidth
25.6 GB/s 34.1 GB/s
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4000 Intel® HD Graphics 530
Graphics Base Frequency
Graphics Base Frequency
650 MHz 350 MHz
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) ‡
No Yes
TSX-NI
Intel® TSX-NI
No Yes
PCI Express Configurations
PCI Express Configurations ‡
up to 1x16, 2x8, 1x8 & 2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
ADVERTISEMENT

The third gen Ivy Bridge Core i7-3770K can't really be described as a consumer orientated processor. With 8 threads and four cores its capabilities are better aligned to server use. For price insensitive consumers that want the best of the best, this is currently one of the fastest processors available. The PassMark Single Thread score of 2080 points put the 3770K right at the top of the pack in terms of raw processing power and real world performance. The GeekBench and PassMark scores of 17210 and 9653 are within 20% or so of the best we have ever seen. Despite the near record breaking processing throughputs the 3770K is only rated at 77 TDP, which is also very reasonable by historical standards. For typical consumer use there are better value propositions out there. [May '13 CPUPro]

MORE DETAILS

The Intel Core i5-6600K is based on the new "Skylake" 14nm manufacturing process. Sporting 4 physical cores with base/turbo clocks of 3.5/3.9 GHz the 6600K and its predecessor, the 4690K share the same basic configuration and disappointingly, offer similar performance. Comparing the 6600K and 6700K shows that the 6700K has faster multi and single core performance. The improved multi core performance is due to Hyperthreading which is the key differentiator for the i7-6700K. The gap in single core performance can largely be eliminated by overclocking the i5-6600K so although the stock effective speed is significantly higher on the 6700K, this gap diminishes significantly when both processors are overclocked. At a 30% discount, the 6600K is the better value gaming CPU. [Aug '15 CPUPro]

MORE DETAILS

Processor Rankings (Price vs Performance) July 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 $320Nvidia GTX 1070 $408Samsung 850 Evo 250GB $85
AMD Ryzen 5 1600 $150Nvidia GTX 1060-6GB $289Samsung 850 Evo 500GB $121
Intel Core i5-8600K $235AMD RX 480 $280Samsung 850 Pro 256GB $160
HDDRAMUSB
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $176SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
Today's hottest deals
User Guide  •  About  •  FAQs  •  Email  •  Privacy  •  Developer Feedback