IntelBX80637I73770K
IntelBX80646I74790K

4 Cores, 8 Threads @3.5GHz, Ivy Bridge.
Release date: Q2 2012.

4 Cores, 8 Threads @4.0GHz, Haswell.
Release date: Q2 2014.

Real World Speed
Performance profile from 219,737 user samples
56,767 User Benchmarks
Best Bench: 87% Base clock 3.5 GHz
Worst Bench: 59% Base clock 3.5 GHz, turbo 2 GHz (avg)
Poor: 59% Great: 87%
SPEED RANK: 110th / 1128
Gaming
Gaming 73%
Battleship
Desktop
Desktop 74%
Battleship
Workstation
Workstation 54%
Yacht
162,970 User Benchmarks
Best Bench: 98% Base clock 4 GHz, turbo 4.7 GHz (avg)
Worst Bench: 70% Base clock 4 GHz, turbo 0.8 GHz (avg)
Poor: 70% Great: 98%
SPEED RANK: 43rd / 1128
Gaming
Gaming 85%
Aircraft carrier
Desktop
Desktop 86%
Aircraft carrier
Workstation
Workstation 63%
Destroyer
Effective Speed
Effective CPU Speed
73 % 85 % Faster effective speed.
+16%
SC Mixed
Avg. Single Core Mixed Speed
105 Pts 121 Pts Faster single-core speed.
+15%
QC Mixed
Avg. Quad Core Mixed Speed
355 Pts 414 Pts Faster quad-core speed.
+17%
MC Mixed
Avg. Multi Core Mixed Speed
537 Pts 634 Pts Faster multi-core speed.
+18%
SC Mixed
OC Single Core Mixed Speed
122 Pts 136 Pts Slightly faster OC single-core speed.
+11%
QC Mixed
OC Quad Core Mixed Speed
445 Pts 495 Pts Slightly faster OC quad-core speed.
+11%
MC Mixed
OC Multi Core Mixed Speed
631 Pts 715 Pts Slightly faster OC multi-core speed.
+13%
Market Share
Based on 11,473,815 CPUs tested.
Market Share
Market Share (trailing 30 days)
0.59 % 1.57 % Hugely higher market share.
+166%
Value
Value For Money
60.2 % 78.2 % Better value.
+30%
User Rating
UBM User Rating
68 % 90 % Much more popular.
+32%
Price
Price (score)
$488 $365 Cheaper.
+25%
Age
Newest
78 Months 52 Months Much more recent.
+33%
TDP
Thermal Design Power (TDP)
77 Watts Slightly more energy efficient.
+12%
88 Watts
Cores
CPU Processing Cores
4 cores 4 cores
Threads
CPU Processing Threads
8 threads 8 threads
Lithography
Manufacturing process
22 nm 22 nm
Base Clock
Base Clock Speed
3.5 GHz 4 GHz Slightly faster base frequency.
+14%
Turbo Clock
Turbo Clock Speed
3.9 GHz 4.4 GHz Slightly faster turbo frequency.
+13%
SC Int
Single Core Integer Speed
121 Pts 136 Pts Slightly faster single-core int speed.
+12%
SC Float
Single Core Floating Point Speed
124 Pts 137 Pts Slightly faster single-core fp speed.
+10%
QC Int
Quad Core Integer Speed
445 Pts 503 Pts Slightly faster quad-core int speed.
+13%
QC Float
Quad Core Floating Point Speed
449 Pts 501 Pts Slightly faster quad-core fp speed.
+12%
MC Int
Multi Core Integer Speed
621 Pts 680 Pts Slightly faster multi-core int speed.
+10%
MC Float
Multi Core Floating Point Speed
620 Pts 727 Pts Faster multi-core fp speed.
+17%
Series
CPU Architecture
Ivy Bridge Haswell
Socket
Motherboard Socket
FCLGA1155 FCLGA1150
Graphics
Integrated Graphics
HD 4000 HD 4600
Launch Date
Launch Date
Q2'12 Q2'14
Instruction Set Extensions
Instruction Set Extensions
SSE4.1/4.2, AVX SSE4.1/4.2, AVX 2.0
Recommended Price
Recommended Customer Price
$332.00 - $342.00 $339.00 - $350.00
Bus Speed
Bus Speed
5 GT/s DMI 5 GT/s DMI2
Thermal Solution Specification
Thermal Solution Specification
2011D PCG 2013D
Memory Types
Memory Types
DDR3 1333/1600 DDR3-1333/1600, DDR3L-1333/1600 @ 1.5V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4000 Intel® HD Graphics 4600
Graphics Base Frequency
Graphics Base Frequency
650 MHz 350 MHz
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 1.25 GHz
Virtualization for Directed I/O (VT-d)
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
No Yes
PCI Express Configurations
PCI Express Configurations ‡
up to 1x16, 2x8, 1x8 & 2x4 Up to 1x16, 2x8, 1x8+2x4

More specs » More specs »
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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 i7-4790K, codenamed Devil's Canyon, is an upgraded 4770K, Intel's current flagship i7. The 4790K features an improved thermal interface which enables it to dissipate heat more efficiently than the 4770K. Comparing the 4770K and 4790K shows that stock performance has improved by 13% which is consistent with the base clock jump from 3.5 GHz to 4.0 GHz. OC performance remains unchanged. Comparing the 4790K and 4790 shows that at stock clocks the 4790K is around 16% faster which considering the small price difference makes the 4790K a far better choice. Previously Intel targeted the unlocked K versions at overclockers but with Devil's Canyon they have included VT-d on the K chip and this time it's squarely aimed at both power users and overclockers alike. Until the release of Broadwell in six months, the 4790K is the high end CPU of choice. [Jul '14 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]

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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.

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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.

 Frequently Asked Questions

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CPUGPUSSD
Intel Core i7-8700K $376Nvidia GTX 1070 $329Samsung 850 Evo 250GB $78
AMD Ryzen 5 1600 $155Nvidia GTX 1060-6GB $249Samsung 850 Evo 500GB $115
Intel Core i7-7700K $360AMD RX 480 $280Samsung 850 Pro 256GB $163
HDDRAMUSB
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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
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