INTEL

Intel Core i7-975

Intel processor specifications and benchmark scores

4
Cores
8
Threads
3.6
GHz Boost
130W
TDP
🔓Unlocked

Intel Core i7-975 Specifications

⚙️

Core i7-975 Core Configuration

Processing cores and threading

The Intel Core i7-975 features 4 physical cores and 8 threads, which directly impacts multi-threaded performance in CPU benchmarks. More cores allow the processor to handle parallel workloads efficiently, improving performance in video editing, 3D rendering, and multitasking scenarios. Thread count determines how many simultaneous tasks the CPU can process, with higher thread counts benefiting productivity applications and content creation workflows.

Cores
4
Threads
8
SMP CPUs
1
⏱️

i7-975 Clock Speeds

Base and boost frequencies

Clock speed is a critical factor in Core i7-975 benchmark performance, measured in GHz. The base clock represents the guaranteed operating frequency, while the boost clock indicates maximum single-core performance under optimal conditions. Higher clock speeds translate to faster single-threaded performance, which is essential for gaming and applications that don't fully utilize multiple cores. The Core i7-975 by Intel can dynamically adjust its frequency based on workload and thermal headroom.

Base Clock
3.33 GHz
Boost Clock
3.6 GHz
Multiplier
25x 🔓
💾

Intel's Core i7-975 Cache Hierarchy

L1, L2, L3 cache sizes

Cache memory is ultra-fast storage built directly into the i7-975 processor die. L1 cache provides the fastest access for frequently used data, while L2 and L3 caches offer progressively larger storage with slightly higher latency. Larger cache sizes significantly improve CPU benchmark scores by reducing memory access times. The Core i7-975's cache configuration is optimized for both gaming performance and productivity workloads, minimizing data fetch delays during intensive computations.

L1 Cache
64 KB (per core)
L2 Cache
256 KB (per core)
L3 Cache
8 MB (shared)
🏗️

Nehalem Architecture & Process

Manufacturing and design details

The Intel Core i7-975 is built on Intel's 45 nm manufacturing process, which determines power efficiency and thermal characteristics. Smaller process nodes allow for more transistors in the same space, enabling higher performance per watt. The architecture defines how the processor handles instructions and manages data flow, directly impacting benchmark results across different workload types. Modern CPU architectures like the one in i7-975 incorporate advanced branch prediction and out-of-order execution for optimal performance.

Architecture
Nehalem
Codename
Bloomfield
Process Node
45 nm
Foundry
Intel
Transistors
731 million
Die Size
263 mm²
Generation
Core i7 Extreme (Bloomfield)
🔢

Nehalem Instruction Set Features

Supported CPU instructions and extensions

The Core i7-975 by Intel supports various instruction set extensions that enable optimized performance for specific workloads. SIMD instructions like SSE and AVX accelerate multimedia, scientific computing, and AI workloads by processing multiple data points simultaneously. Features like AES-NI provide hardware-accelerated encryption, while AVX-512 (if supported) enables advanced vector processing for data centers and high-performance computing. These instruction sets are critical for software compatibility and performance in modern applications.

MMX
SSE
SSE2
SSE3
SSSE3
SSE4.1
SSE4.2
Intel 64
VT-x
🔌

i7-975 Power & Thermal

TDP and power specifications

The Intel Core i7-975 has a TDP (Thermal Design Power) of 130W, indicating the cooling solution required for sustained operation. TDP affects both system power consumption and the type of cooler needed. Lower TDP processors are ideal for compact builds and laptops, while higher TDP chips typically offer better sustained performance in demanding CPU benchmarks. Understanding power requirements helps ensure your system can deliver consistent performance without thermal throttling.

TDP
130W
🔧

Intel Socket 1366 Platform & Socket

Compatibility information

The Core i7-975 uses the Intel Socket 1366 socket, which determines motherboard compatibility. Choosing the right platform is essential for building a system around this processor. The socket type also influences available features like PCIe lanes, memory support, and upgrade paths. When comparing CPU benchmarks, ensure you're looking at processors compatible with your existing or planned motherboard to make informed purchasing decisions.

Socket
Intel Socket 1366
PCIe
Gen 2
Package
FC-LGA8
DDR5

Intel Socket 1366 Memory Support

RAM compatibility and speeds

Memory support specifications for the i7-975 define which RAM types and speeds are compatible. Faster memory can significantly improve CPU benchmark performance, especially in memory-intensive applications and gaming. The memory controller integrated into the Core i7-975 determines maximum supported speeds and channels. Dual-channel or quad-channel memory configurations can double or quadruple memory bandwidth, providing noticeable performance gains in content creation and scientific workloads.

Memory Type
DDR3
Memory Bus
Triple-channel
Memory Bandwidth
25.6 GB/s
📦

Core i7-975 Product Information

Release and pricing details

The Intel Core i7-975 is manufactured by Intel and represents their commitment to delivering competitive CPU performance. Understanding the release date and pricing helps contextualize benchmark comparisons with other processors from the same generation. Launch pricing provides a baseline for evaluating value, though street prices often differ. Whether you're building a new system or upgrading, the Core i7-975 by Intel offers a specific balance of performance, features, and cost within Intel's product lineup.

Manufacturer
Intel
Release Date
Jun 2009
Launch Price
$1059
Market
Desktop
Status
End-of-life
Part Number
SLBEQ
Bundled Cooler
Yes

Core i7-975 Benchmark Scores

cinebench_cinebench_r15_multicoreSource

Cinebench R15 multi-core renders a complex 3D scene using all CPU threads simultaneously. This test reveals how Intel Core i7-975 performs in parallel rendering workloads like video production and 3D animation. The R15 version remains useful for comparing against older hardware benchmarks. Higher scores directly correlate with faster render times in Cinema 4D and similar 3D applications.

cinebench_cinebench_r15_multicore #1329 of 1788
301
2%
Max: 14,978

cinebench_cinebench_r20_multicoreSource

Cinebench R20 multi-core uses a scene requiring 4x more computational power than R15. This test better reflects modern CPU capabilities for professional rendering on Intel Core i7-975. The more demanding workload provides better differentiation between current-generation processors.

cinebench_cinebench_r20_multicore #1328 of 1788
1,256
2%
Max: 62,412
Compare with other CPUs

cinebench_cinebench_r20_singlecoreSource

Cinebench R20 single-core tests one thread against a more demanding scene than R15. This reveals the true single-thread rendering capability of Intel Core i7-975. The increased complexity provides more accurate performance differentiation between modern CPUs.

cinebench_cinebench_r20_singlecore #1329 of 1784
177
2%
Max: 8,811

cinebench_cinebench_r23_multicoreSource

Cinebench R23 multi-core is the current standard for CPU rendering benchmarks with a 10-minute minimum runtime. This extended test reveals sustained performance of Intel Core i7-975 after thermal limits kick in. The longer duration exposes cooling limitations that shorter benchmarks miss.

cinebench_cinebench_r23_multicore #1328 of 1788
2,992
2%
Max: 148,601
Compare with other CPUs

🏆 Top 5 Performers

cinebench_cinebench_r23_singlecoreSource

Cinebench R23 single-core measures sustained single-thread performance over 10 minutes. This reveals how Intel Core i7-975 maintains boost clocks under continuous load. The extended runtime shows whether thermal throttling affects single-core performance.

cinebench_cinebench_r23_singlecore #1328 of 1788
422
2%
Max: 20,979

About Intel Core i7-975

Ever wondered how the Intel Core i7-975 holds up in today's demanding workloads, given its 2009 origins? This Bloomfield-era powerhouse boasts 4 cores and 8 threads, with a base clock of 3.33 GHz boosting to 3.60 GHz under turbo. In real-world scenarios like video editing or 3D rendering from that time, it delivered snappy performance for enthusiasts. But does it still cut it for modern multitasking? Expect solid results in legacy applications, yet it might struggle with heavily threaded tasks compared to newer chips. Its 130W TDP demands robust cooling, raising questions about power efficiency in prolonged sessions. Overall, the i7-975 shines in nostalgic setups but prompts curiosity about its relevance now. Diving into productivity benchmarks, how does the Core i7-975 chip from Intel fare in Cinebench suites? It scores 2,992 points in Cinebench R23 multicore, indicating respectable multi-threaded muscle for its age. Single-core hits 422 points in R23 and 177 in R20, suitable for lighter tasks back then. In R20 multicore, it reaches 1,256 points, while R15 multicore lands at 301 numbers that spark questions on scaling with software optimizations. These figures suggest it handles office suites or basic content creation without breaking a sweat historically. Yet, do these translate to seamless Adobe workflows today? The shared 8MB L3 cache aids in keeping data close, but 45nm process tech invites scrutiny on heat and speed limits. Considering value, was the Intel Core i7-975's $1059 launch price justified for extreme users? At release on June 2, 2009, it targeted high-end gamers and pros craving top-tier speed. Today, its scarcity on the used market makes it a collector's item rather than a budget buy. Does its performance per dollar stack up against current mid-range CPUs? Probably not, as modern alternatives crush it in efficiency and core counts for less power. Still, for retro builds or specific Socket 1366 nostalgia, it offers intriguing bang-for-buck sentiment. Ultimately, its value proposition hinges on your quest for vintage excellence over raw modernity. What platform quirks come with harnessing the i7-975 processor? It demands Intel Socket 1366, pairing exclusively with X58 chipsets like those on DX58SO motherboards. Triple-channel DDR3 memory at up to 1333 MHz is essential does your setup support it? High-end cooling is non-negotiable given the 130W TDP, prompting questions on case airflow and thermal paste choices. No integrated graphics means a discrete GPU is mandatory, adding to build costs. Compatibility with Windows 7 or Linux distros from that era feels native, but driver hunts arise for newer OSes. In essence, embracing this chip requires a dedicated vintage platform commitment.

The AMD Equivalent of Core i7-975

Looking for a similar processor from AMD? The AMD Ryzen 7 1700 offers comparable performance and features in the AMD lineup.

AMD Ryzen 7 1700

AMD • 8 Cores

View Specs Compare

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