IntelBX80637I73770K
IntelBX80662I56400

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

4 Cores, 4 Threads @2.7GHz, Skylake.
Release date: Q3 2015.

Real World Speed
Performance profile from 337,436 user samples
165,979 User Benchmarks
Best Bench: 83% Base clock 3.5 GHz, turbo 4.7 GHz (avg)
Worst Bench: 59% Base clock 3.5 GHz, turbo 3.7 GHz (avg)
Poor: 59% Great: 83%
SPEED RANK: 353rd / 1442
Gaming
Gaming 72%
Battleship
Desktop
Desktop 76%
Battleship
Workstation
Workstation 58%
Gunboat
171,457 User Benchmarks
Best Bench: 71% Base clock 2.7 GHz, turbo 3.1 GHz (avg)
Worst Bench: 39% Base clock 2.7 GHz, turbo 0.5 GHz (avg)
Poor: 39% Great: 71%
SPEED RANK: 566th / 1442
Gaming
Gaming 61%
Destroyer
Desktop
Desktop 66%
Battle cruiser
Workstation
Workstation 45%
Yacht
Effective Speed
Effective CPU Speed
72.4 % Faster effective speed.
+19%
60.8 %
Memory
Avg. Memory Latency
86.9 Pts Lower memory latency.
+16%
75.2 Pts
1-Core
Avg. Single Core Speed
96.5 Pts Faster single-core speed.
+14%
84.6 Pts
2-Core
Avg. Dual Core Speed
182 Pts Slightly faster dual-core speed.
+10%
166 Pts
4-Core
Avg. Quad Core Speed
314 Pts Faster quad-core speed.
+18%
267 Pts
8-Core
Avg. Octa Core Speed
458 Pts Much faster octa-core speed.
+60%
286 Pts
Memory
OC Memory Latency
96.4 Pts Lower OC memory latency.
+11%
86.8 Pts
1-Core
OC Single Core Speed
116 Pts Faster OC single-core speed.
+21%
96.1 Pts
2-Core
OC Dual Core Speed
222 Pts Faster OC dual-core speed.
+17%
189 Pts
4-Core
OC Quad Core Speed
382 Pts Faster OC quad-core speed.
+14%
335 Pts
8-Core
OC Octa Core Speed
557 Pts Much faster OC octa-core speed.
+62%
344 Pts
Market Share
Based on 67,717,761 CPUs tested
Market Share
Market Share (trailing 30 days)
0.21 % 0.43 % Hugely higher market share.
+105%
Value
Value For Money
82.2 % 85.9 % +5%
User Rating
UBM User Rating
62 % More popular.
+13%
55 %
Price
Price (score)
$175 $79 Much cheaper.
+55%
Age
Newest
144 Months 103 Months More recent.
+28%
TDP
Thermal Design Power (TDP)
77 Watts 65 Watts More energy efficient.
+16%
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 Faster base frequency.
+30%
2.7 GHz
Turbo Clock
Turbo Clock Speed
3.9 GHz Faster turbo frequency.
+18%
3.3 GHz
64-Core
OC Multi Core Speed
573 Pts Much faster OC 64-core speed.
+66%
346 Pts
64-Core
Avg. Multi Core Speed
471 Pts Much faster 64-core speed.
+64%
288 Pts
Series
CPU Architecture
Ivy Bridge Skylake
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 $182.00 - $187.00
Max Turbo Frequency
Max Turbo Frequency
3.9 GHz 3.3 GHz
Bus Speed
Bus Speed
5 GT/s DMI 8 GT/s DMI3
Thermal Solution Specification
Thermal Solution Specification
2011D PCG 2015C (65W)
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
Graphics Max Dynamic Frequency
Graphics Max Dynamic Frequency
1.15 GHz 950 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
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 puts 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 very low by historical standards. For typical consumer use there are better value propositions out there. [May '13 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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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.
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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
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 Frequently Asked Questions

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HDDRAMUSB
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