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IntelBX80637I73770K
IntelBX80677I77700K

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

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

Real World Speed
Performance profile from 878,291 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: 373rd / 1468
Gaming
Gaming 72%
Battleship
Desktop
Desktop 76%
Battleship
Workstation
Workstation 58%
Gunboat
712,312 User Benchmarks
Best Bench: 92% Base clock 4.2 GHz, turbo 5 GHz (avg)
Worst Bench: 71% Base clock 4.2 GHz, turbo 0.2 GHz (avg)
Poor: 71% Great: 92%
SPEED RANK: 209th / 1468
Gaming
Gaming 84%
Aircraft carrier
Desktop
Desktop 89%
Aircraft carrier
Workstation
Workstation 70%
Battleship
Effective Speed
Effective CPU Speed
72.4 % 84.2 % Faster effective speed.
+16%
Memory
Avg. Memory Latency
86.9 Pts 89.6 Pts +3%
1-Core
Avg. Single Core Speed
96.5 Pts 127 Pts Much faster single-core speed.
+32%
2-Core
Avg. Dual Core Speed
182 Pts 242 Pts Much faster dual-core speed.
+33%
4-Core
Avg. Quad Core Speed
314 Pts 426 Pts Much faster quad-core speed.
+36%
8-Core
Avg. Octa Core Speed
458 Pts 647 Pts Much faster octa-core speed.
+41%
Memory
OC Memory Latency
96.4 Pts 96.5 Pts +0%
1-Core
OC Single Core Speed
116 Pts 142 Pts Faster OC single-core speed.
+22%
2-Core
OC Dual Core Speed
222 Pts 275 Pts Faster OC dual-core speed.
+24%
4-Core
OC Quad Core Speed
382 Pts 482 Pts Faster OC quad-core speed.
+26%
8-Core
OC Octa Core Speed
557 Pts 737 Pts Much faster OC octa-core speed.
+32%
Market Share
Based on 69,052,451 CPUs tested
Market Share
Market Share (trailing 30 days)
0.22 % 0.91 % Hugely higher market share.
+314%
Value
Value For Money
85.7 % 100 % Better value.
+17%
User Rating
UBM User Rating
62 % 85 % Much more popular.
+37%
Price
Price (score)
$150 $148 +2%
Age
Newest
151 Months 94 Months Much more recent.
+38%
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 8 threads
Lithography
Manufacturing process
22 nm 14 nm Much newer manufacturing.
+36%
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%
64-Core
OC Multi Core Speed
573 Pts 747 Pts Much faster OC 64-core speed.
+30%
64-Core
Avg. Multi Core Speed
471 Pts 662 Pts Much faster 64-core speed.
+41%
Series
CPU Architecture
Ivy Bridge Kaby Lake
Socket
Motherboard Socket
FCLGA1155 FCLGA1151
Graphics
Integrated Graphics
HD 4000 HD 630
Launch Date
Launch Date
Q2'12 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
22 nm 14 nm
Recommended Price
Recommended Customer Price
$332.00 - $342.00 $339.00 - $350.00
Max Turbo Frequency
Max Turbo Frequency
3.9 GHz 4.50 GHz
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 DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Processor Graphics
Processor Graphics ‡
Intel® HD Graphics 4000 Intel® HD Graphics 630
Graphics Base Frequency
Graphics Base Frequency
650 MHz 350.00 MHz
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 »

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

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) November 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]

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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