Intel Core i5-655K Intel Core i7-975
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Intel Core i5-655K vs Intel Core i7-975

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Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 2 - 93 %
Intel Core i5-655K
Rank 1 - 100 %
Intel Core i7-975
Multi-core performance
Rank 2 - 58 %
Intel Core i5-655K
Rank 1 - 100 %
Intel Core i7-975
Geekbench 5, 64bit Single-Core

Geekbench 5, 64bit Single-Core
Single-core performance

Intel Core i5-655K
2C / 4T · 3.46 GHz
564
Intel Core i7-975
4C / 8T · 3.60 GHz
607
Geekbench 5, 64bit Multi-Core

Geekbench 5, 64bit Multi-Core
Multi-core performance

Intel Core i5-655K
2C / 4T · 3.20 GHz
1,252
Intel Core i7-975
4C / 8T · 3.33 GHz
2,460

More benchmarks

At a glance

Wischen
Intel Core i5-655KIntel Core i7-975
FamilyIntel Core i5 (336)Intel Core i7 Extreme Edition (24)
CPU groupIntel Core i5 600 (6)Intel Core i7 900 (7)
ArchitectureClarkdaleBloomfield
Technology32 nm45 nm
SegmentDesktopDesktop
SocketLGA 1156LGA 1366
Predecessor
Successor

CPU Cores and Base Frequency

Wischen
Intel Core i5-655KIntel Core i7-975
CPU Cores / Threads2 / 44 / 8
Hyperthreading / SMT
Core architecturenormalnormal
Cores: 2x 4x
Frequency: 3.20 GHz 3.33 GHz
Turbo (1 Core): 3.46 GHz 3.60 GHz
Turbo (All Cores):
L2-Cache0.50 MB1.00 MB
L3-Cache4.00 MB8.00 MB
Overclocking

Integrated graphics (iGPU)

Wischen
Intel Core i5-655KIntel Core i7-975
GPU nameIntel HD Graphics (Westmere)no iGPU
GPU frequency0.50 - 0.73 GHz
CUs / Shader12 / 24 /
Raytracing
Max. displays2
Max. GPU Memory2 GB
Technology32 nm
Release dateQ1/2010

NPU AI performance

Wischen
Intel Core i5-655KIntel Core i7-975
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Wischen
Intel Core i5-655KIntel Core i7-975
MemoryDDR3-1333 (21.3 GB/s)
DDR3-1066 (17.1 GB/s)
DDR3-1066 (25.6 GB/s)
Max. Memory16 GB24 GB
Memory channels23
ECCNoNo
PCIe2.0 x 16
PCIe Bandwidth8.0 GB/s

Thermal Management

Wischen
Intel Core i5-655KIntel Core i7-975
TDP73 W130 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

Wischen
Intel Core i5-655KIntel Core i7-975
Chip designMonolithicMonolithic
AES-NI
Operating systemsWindows 10, LinuxWindows 10, Linux
Instruction setx86-64 (64 bit)x86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2SSE4.1, SSE4.2
Release dateQ1/2010Q4/2008
Release price177 $1059 $
DocumentsTechnical data sheetTechnical data sheet

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core i5-655K is 0 stars (0 ratings), while Intel Core i7-975 has received 4.7 stars (3 ratings).

Click on the stars to rate one or both processors.

Intel Core i5-655K
Intel Core i5-655K
2C / 4T · 3.20 - 3.46 GHz
Intel Core i7-975
Intel Core i7-975
4C / 8T · 3.33 - 3.60 GHz

Most popular CPUs in both categories

Intel Core i5-655K
Intel Core i5-655K
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