Core i7 975

Details and Benchmarks for Intel Core i7 975

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core i7 975 based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,866 Rank: 985
Rank Name Score Visual
981 Xeon E3-1270 V2 4,868
+0%
982 Core i7-3720QM 4,868
+0%
983 Core i7-3770S 4,867
+0%
984 Core i7-4870HQ 4,867
+0%
985 Core i7 975 4,866
986 Xeon Silver 4114 4,865
+-0%
987 Xeon D-1539 4,865
+-0%
988 Core i7-4760HQ 4,862
-0.1%
989 Xeon E3-1245 V2 4,861
-0.1%
990 Core i3-4160 4,861
-0.1%

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Multicore Score

Multicore performance score for Core i7 975 based on multi-threaded benchmark results.

4,881 Rank: 754
Rank Name Score Visual
750 Core i3-7100 4,882
+0%
751 Ryzen 5 1500X 4,882
+0%
752 Core i7-3770K 4,881
+0%
753 Core i7-4722HQ 4,881
+0%
754 Core i7 975 4,881
755 Core i3-1115G4 4,878
-0.1%
756 Core i5-6600 4,877
-0.1%
757 Core i5-4690K 4,877
-0.1%
758 Xeon E5-1620 v2 4,877
-0.1%
759 Core i5-4690 4,876
-0.1%

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Singlecore Score

Single-core performance score for Core i7 975 based on single-threaded benchmark results.

4,856 Rank: 1036
Rank Name Score Visual
1032 Celeron G3930T 4,863
+0.1%
1033 Core i7-6500U 4,860
+0.1%
1034 Core i5-3330S 4,860
+0.1%
1035 Core i7-3520M 4,858
+0%
1036 Core i7 975 4,856
1037 Core i3-6100TE 4,850
-0.1%
1038 Celeron G3930 4,850
-0.1%
1039 Core i5-2450P 4,849
-0.1%
1040 Pentium G4400T 4,848
-0.2%
1041 Core i5-5350U 4,847
-0.2%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core i7 975 based on integer math, floating point math, and prime number computation benchmarks.

-- Rank: --

Number Crunching score not yet available.

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Data Processing

Aggregated score for Core i7 975 based on data encryption, data compression, and string sorting benchmarks.

-- Rank: --

Data Processing score not yet available.

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Physics & Compute

Aggregated score for Core i7 975 based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

-- Rank: --

Physics & Compute score not yet available.

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Core i7 975 Details

The Core i7-975 stands as a notable example of Intel's high-performance desktop processors from the early 2010s, showcasing a design that emphasized both multi-threaded throughput and integrated graphics capabilities. While released over a decade ago, its performance remains competitive in specific segments, particularly when compared to modern low-end and mid-range CPUs. Built on a 45 nm process and utilizing the LGA-1366 socket, the processor reflects a period when Intel was transitioning toward more sophisticated multi-core architectures. Despite its age, the Core i7-975 still holds a respectable position in multicore performance rankings, ranking #752 out of 2060 processors with an Overall Score of 4866.

At its core, the Core i7-975 features four physical cores with eight threads, enabled by Hyper-Threading technology. This design allows the processor to efficiently handle a wide range of workloads, from content creation to light gaming, though its performance is now constrained by its older architecture. Clock speeds range from a base frequency of 3.33 GHz to a turbo boost of 3.6 GHz, supported by a 6.4 GT/s bus speed and a 130 W TDP, which necessitates robust cooling solutions. The processor supports up to 24 GB of DDR3 800/1066 memory across three channels, with a maximum memory bandwidth of 25.6 GB/s, offering sufficient performance for its time.

Integrated graphics play a significant role in the Core i7-975's appeal, featuring the Intel HD Graphics 2000 GPU. This GPU includes 12 execution units with a base frequency of 850 MHz and a burst frequency of 1100 MHz, capable of driving up to two displays simultaneously. While not suited for modern gaming or intensive graphics tasks, it provides adequate performance for basic multimedia, office applications, and light video playback. The processor also supports a range of advanced technologies, including AES-NI encryption, AVX2, and Intel VT-x virtualization, ensuring compatibility with a wide array of software environments.

In benchmark testing, the Core i7-975 demonstrates a single-core score of 4856, placing it at #1036 in the single-core rankings, and a multicore score of 4881, ranking #752 in multicore performance. These results highlight a balanced performance profile, though the processor is clearly outpaced by modern counterparts. The overall score of 4866 positions it as a mid-tier performer when compared to contemporary CPUs, particularly in single-threaded tasks where it competes with mid-range Intel processors like the Core i3-6100TE and the Celeron G3930T. However, its performance is surpassed by higher-end models such as the Core i7-3770S and Core i7-4870HQ, indicating that its strengths are best utilized in systems where cost and legacy compatibility outweigh the need for cutting-edge performance.

As of March 2026, the Core i7-975 remains a viable option for users with legacy systems or those seeking a cost-effective upgrade path. Its integrated GPU reduces the need for a discrete graphics card, making it ideal for basic productivity and multimedia tasks. While it lacks the efficiency and advanced features of modern processors, its robust core count and Hyper-Threading support provide a level of versatility that still makes it relevant in specific scenarios. For enthusiasts and professionals requiring high performance, however, newer architectures offer vastly superior capabilities.
Frequently Compared

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Intel Core i7 975

Main Specifications

Designer: Intel
Name: Core i7 975
Model Number: i7-975
Cores: 4
Threads: 8
Base Frequency: 3330 MHz
Socket: FCLGA1366
Max CPUs: 1
TDP: 130 W

Cache Specifications

Memory Specifications

Supported Memory Type: DDR3 800/1066
Memory Channels: 3
Maximum Memory: 0 GB
Maximum Bandwidth: 25.6 GB/s
ECC Support: No

PCI-Express Specifications

PCIe Revision: 2.0
PCIe Lanes: 16
PCIe Configuration: Up to 1x16, 2x8, 1x8+2x4

Integrated Graphics

GPU: HD Graphics 2000
GPU Designer: Intel
GPU Max Frequency: 1100 MHz

Physical Specifications

Process: 45 nm
Word Size: 64-bit

CPU Features

SSE4.1 SSE4.2 AVX2 AES x86-64 HT EIST TXT vPro VT-x VT-d EPT Secure Key SMEP SIPP IPT TSX Flex Memory FMA
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