Intel Core i7-975 vs Intel Core i7-3770K

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i7-975 or Intel Core i7-975 – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i7-975 features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q4/2008 and belongs to the 1 generation of the Intel Core i7 Extreme Edition series.
To use the Intel Core i7-975, you'll need a motherboard with a LGA 1366 socket.
The Intel Core i7-3770K features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q2/2012 and belongs to the 3 generation of the Intel Core i7 series.
To use the Intel Core i7-3770K, you'll need a motherboard with a LGA 1155 socket.
Desktop / Server Segment Desktop / Server
Intel Core i7-975 Name Intel Core i7-3770K
Intel Core i7 900 Group Intel Core i 3000
1 Generation 3
Intel Core i7 Extreme Edition Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i7-975 has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-975 is 3.33 GHz
and turbo frequency for one core is 3.6 GHz.
The Intel Core i7-3770K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-3770K is 3.5 GHz
and turbo frequency for one core is 3.9 GHz.
Yes Overclocking Yes
3.6 GHz Turbo Frequency (1 core) 3.9 GHz
8 Threads 8
Yes Hyperthreading Yes
4x Cores 4x
3.33 GHz Frequency 3.5 GHz
4 CPU Cores 4
normal Core architecture normal
None None 3.9 GHz
 
 

Internal Graphics

The Intel Core i7-975 does not have integrated graphics.
The Intel Core i7-3770K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-3770K uses the Intel HD Graphics 4000, which has 128 texture shaders
and 16 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
-- GPU frequency 0.65 GHz
-- Execution units 16
-- Release date Q1/2011
-- GPU (Turbo) 1.15 GHz
-- Max. displays --
-- Shaders 128
0 bytes Max. GPU Memory 2.0 GB
-- Generation 7
-- Direct X 11.0
-- Technology 22 nm
GPU name Intel HD Graphics 4000
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
-- h265 / HEVC (8 bit) No
-- AV1 No
-- VP9 No
-- VC-1 Decode
-- VP8 No
-- h264 Decode / Encode
-- JPEG Decode
-- AVC Decode / Encode
-- h265 / HEVC (10 bit) No
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 24.0 GB distributed across 3 memory channels. It offers a peak memory bandwidth of 25.6 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 32.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 25.6 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
24.0 GB Max. Memory 32.0 GB
DDR3-1066 Memory type DDR3-1600
pci PCIe pci
No AES-NI Yes
25.6 GB/s Bandwidth 25.6 GB/s
No ECC No
3 Memory channels 2
 
 

Thermal Management

The processor has a thermal design power (TDP) of 130 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 77 W watts.
130 W TDP (PL1 / PBP) 77 W
-- Tjunction max --
 
 

Technical details

The Intel Core i7-975 is manufactured using a 45 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 8.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-3770K is manufactured using a 22 nm process.
Windows 10, Linux Operating systems Windows 10, Linux
1.0 MB L2-Cache 0 bytes
SSE4.1, SSE4.2 ISA extensions SSE4.1, SSE4.2, AVX
8.0 MB L3-Cache 8.0 MB
Q4/2008 Release date Q2/2012
1059 $ Release price 275 $
Technical data sheet Documents Technical data sheet
-- Part Number --
LGA 1366 Socket LGA 1155
Bloomfield Architecture Ivy Bridge S
VT-x, VT-x EPT Virtualization VT-x, VT-x EPT
45 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
 
 

Benchmarks

Geekbench 5, 64bit (Multi-Core)

Intel Core i7-3770K
4C 8T @ 3.5 GHz
3409
3409
Intel Core i7-975
4C 8T @ 3.33 GHz
2460
2460

Geekbench 6 (Multi-Core)

Intel Core i7-3770K
4C 8T @ 3.5 GHz
2527
2527
Intel Core i7-975
4C 8T @ 3.33 GHz
2225
2225

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i7-3770K
4C 8T @ 3.5 GHz
1866
1866
Intel Core i7-975
4C 8T @ 3.33 GHz
1598
1598

Geekbench 6 (Single-Core)

Intel Core i7-3770K
4C 8T @ 3.5 GHz
737
737
Intel Core i7-975
4C 8T @ 3.33 GHz
635
635