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Intel Core i7-975 vs Intel Core i7-875K
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Geekbench 6 Single-Core
Single-core performance
Intel Core i7-975
100 %
4C / 8T · 3.60 GHz
Intel Core i7-875K
74 %
4C / 8T · 3.60 GHz
Geekbench 6 Multi-Core
Multi-core performance
Intel Core i7-975
100 %
4C / 8T · 3.33 GHz
Intel Core i7-875K
64 %
4C / 8T · 2.93 GHz
Geekbench 5, 64bit Single-Core
Single-core performance
Intel Core i7-975
100 %
4C / 8T · 3.60 GHz
Intel Core i7-875K
93 %
4C / 8T · 3.60 GHz
Geekbench 5, 64bit Multi-Core
Multi-core performance
Intel Core i7-975
100 %
4C / 8T · 3.33 GHz
Intel Core i7-875K
86 %
4C / 8T · 2.93 GHz
CPU-Z Benchmark 17 Multi-Core
Multi-core performance
Intel Core i7-975
100 %
4C / 8T · 3.33 GHz
Intel Core i7-875K
91 %
4C / 8T · 2.93 GHz
More benchmarks
Specifications
At a glance
|
Wischen
|
Intel Core i7-975 | Intel Core i7-875K |
|---|---|---|
| Family | Intel Core i7 Extreme Edition (24) | Intel Core i7 (300) |
| CPU group | Intel Core i7 900 (7) | Intel Core i7 800 (6) |
| Architecture | Bloomfield | Lynnfield |
| Technology | 45 nm | 45 nm |
| Segment | Desktop | Desktop |
| Socket | LGA 1366 | LGA 1156 |
| Predecessor | ||
| Successor |
CPU Cores and Base Frequency
|
Wischen
|
Intel Core i7-975 | Intel Core i7-875K |
|---|---|---|
| CPU Cores / Threads | 4 / 8 | 4 / 8 |
| Hyperthreading / SMT | ✓ | ✓ |
| Core architecture | normal | normal |
| Cores: | 4x | 4x |
| Frequency: | 3.33 GHz | 2.93 GHz |
| Turbo (1 Core): | 3.60 GHz | 3.60 GHz |
| Turbo (All Cores): | ||
| L2-Cache | 1.00 MB | 1.00 MB |
| L3-Cache | 8.00 MB | 8.00 MB |
| Overclocking | ✓ | ✓ |
Integrated graphics (iGPU)
|
Wischen
|
Intel Core i7-975 | Intel Core i7-875K |
|---|---|---|
| GPU name | no iGPU | no iGPU |
| GPU frequency | ||
| CUs / Shader | / | / |
| Raytracing | ✗ | ✗ |
| Max. displays | ||
| Max. GPU Memory | ||
| Technology | ||
| Release date |
NPU AI performance
|
Wischen
|
Intel Core i7-975 | Intel Core i7-875K |
|---|---|---|
| AI hardware | ||
| AI specifications | ||
| NPU + CPU + iGPU |
Memory & PCIe
|
Wischen
|
Intel Core i7-975 | Intel Core i7-875K |
|---|---|---|
| Memory | DDR3-1066 (25.6 GB/s) | DDR3-1066 (17.1 GB/s) |
| Max. Memory | 24 GB | 16 GB |
| Memory channels | 3 | 2 |
| ECC | No | No |
| PCIe | 2.0 x 16 | |
| PCIe Bandwidth | 8.0 GB/s |
Thermal Management
|
Wischen
|
Intel Core i7-975 | Intel Core i7-875K |
|---|---|---|
| TDP | 130 W | 95 W |
| TDP (PL2) | ||
| TDP up | ||
| TDP down | ||
| T. junction max. |
Technical details
|
Wischen
|
Intel Core i7-975 | Intel Core i7-875K |
|---|---|---|
| Chip design | Monolithic | Monolithic |
| AES-NI | ✗ | ✗ |
| Operating systems | Windows 10, Linux | Windows 10, Linux |
| Instruction set | x86-64 (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4.1, SSE4.2 | SSE4.1, SSE4.2 |
| Release date | Q4/2008 | Q2/2010 |
| Release price | 1059 $ | 353 $ |
| Documents | Technical data sheet | Technical data sheet |
User Reviews
Your rating
Here you can rate one or both of the processors. The average rating of Intel Core i7-975 is 4.7 stars (3 ratings), while Intel Core i7-875K has received 5.0 stars (2 ratings).
Click on the stars to rate one or both processors.
Most popular CPUs in both categories
1
Intel Core i7-875K
4C / 8T · 3.60 GHz
2
Apple M3 Ultra (28-CPU 60-GPU)
28C / 28T · 4.06 GHz
3
Apple M3 Ultra (32-CPU 80-GPU)
32C / 32T · 4.06 GHz
4
Intel Celeron 450
1C / 1T · 0.00 GHz
5
Intel Core i5-13600KF
14C / 20T · 5.10 GHz
6
Intel Core i7-975
4C / 8T · 3.60 GHz
7
AMD Ryzen 7 5800XT
8C / 16T · 4.80 GHz
8
Intel Xeon E5-2680 v4
14C / 28T · 3.30 GHz
9
AMD Ryzen 7 5700X
8C / 16T · 4.60 GHz
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