Intel Pentium G645 vs Intel Core i7-975
Comparative analysis of Intel Pentium G645 and Intel Core i7-975 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Graphics, Graphics interfaces, Compatibility, Peripherals, Security & Reliability, Advanced Technologies, Virtualization. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s).
Differences
Reasons to consider the Intel Pentium G645
- CPU is newer: launch date 3 year(s) 3 month(s) later
- Around 2% higher maximum core temperature: 69.1°C vs 67.9°C
- A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
- Around 33% higher maximum memory size: 32 GB vs 24 GB
- 2x lower typical power consumption: 65 Watt vs 130 Watt
Launch date | September 2012 vs June 2009 |
Maximum core temperature | 69.1°C vs 67.9°C |
Manufacturing process technology | 32 nm vs 45 nm |
Maximum memory size | 32 GB vs 24 GB |
Thermal Design Power (TDP) | 65 Watt vs 130 Watt |
Reasons to consider the Intel Core i7-975
- Processor is unlocked, an unlocked multiplier allows for easier overclocking
- 2 more cores, run more applications at once: 4 vs 2
- 6 more threads: 8 vs 2
- Around 24% higher clock speed: 3.60 GHz vs 2.9 GHz
- 2x more L1 cache, more data can be stored in the L1 cache for quick access later
- 2x more L2 cache, more data can be stored in the L2 cache for quick access later
- 2.7x more L3 cache, more data can be stored in the L3 cache for quick access later
- Around 12% better performance in PassMark - Single thread mark: 1499 vs 1340
- 2.4x better performance in PassMark - CPU mark: 3493 vs 1429
- Around 24% better performance in Geekbench 4 - Single Core: 606 vs 489
- 2.7x better performance in Geekbench 4 - Multi-Core: 2380 vs 878
- 2.9x better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 5.196 vs 1.806
Specifications (specs) | |
Unlocked | Unlocked vs Locked |
Number of cores | 4 vs 2 |
Number of threads | 8 vs 2 |
Maximum frequency | 3.60 GHz vs 2.9 GHz |
L1 cache | 64 KB (per core) vs 64 KB (per core) |
L2 cache | 256 KB (per core) vs 256 KB (per core) |
L3 cache | 8192 KB (shared) vs 3072 KB (shared) |
Benchmarks | |
PassMark - Single thread mark | 1499 vs 1340 |
PassMark - CPU mark | 3493 vs 1429 |
Geekbench 4 - Single Core | 606 vs 489 |
Geekbench 4 - Multi-Core | 2380 vs 878 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 5.196 vs 1.806 |
Compare benchmarks
CPU 1: Intel Pentium G645
CPU 2: Intel Core i7-975
PassMark - Single thread mark |
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PassMark - CPU mark |
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Geekbench 4 - Single Core |
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Geekbench 4 - Multi-Core |
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CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) |
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Name | Intel Pentium G645 | Intel Core i7-975 |
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PassMark - Single thread mark | 1340 | 1499 |
PassMark - CPU mark | 1429 | 3493 |
Geekbench 4 - Single Core | 489 | 606 |
Geekbench 4 - Multi-Core | 878 | 2380 |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 1.806 | 5.196 |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 1.084 | |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 63.217 | |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.376 | |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 1.858 |
Compare specifications (specs)
Intel Pentium G645 | Intel Core i7-975 | |
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Essentials |
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Architecture codename | Sandy Bridge | Bloomfield |
Launch date | September 2012 | June 2009 |
Launch price (MSRP) | $80 | $476 |
Place in performance rating | 2595 | 2589 |
Price now | $95 | $179.99 |
Processor Number | G645 | i7-975 |
Series | Legacy Intel® Pentium® Processor | Legacy Intel® Core™ Processors |
Status | Discontinued | Discontinued |
Value for money (0-100) | 8.01 | 10.04 |
Vertical segment | Desktop | Desktop |
Performance |
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64 bit support | ||
Base frequency | 2.90 GHz | 3.33 GHz |
Bus Speed | 5 GT/s DMI | 6.4 GT/s QPI |
Die size | 131 mm | 263 mm2 |
L1 cache | 64 KB (per core) | 64 KB (per core) |
L2 cache | 256 KB (per core) | 256 KB (per core) |
L3 cache | 3072 KB (shared) | 8192 KB (shared) |
Manufacturing process technology | 32 nm | 45 nm |
Maximum core temperature | 69.1°C | 67.9°C |
Maximum frequency | 2.9 GHz | 3.60 GHz |
Number of cores | 2 | 4 |
Number of threads | 2 | 8 |
Transistor count | 504 million | 731 million |
Front-side bus (FSB) | 1333 MHz | |
Number of QPI Links | 1 | |
Unlocked | ||
VID voltage range | 0.800V-1.375V | |
Memory |
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Max memory channels | 2 | 3 |
Maximum memory bandwidth | 17 GB/s | 25.6 GB/s |
Maximum memory size | 32 GB | 24 GB |
Supported memory types | DDR3 1066 | DDR3 800/1066 |
Graphics |
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Graphics base frequency | 850 MHz | |
Graphics max dynamic frequency | 1.10 GHz | |
Graphics max frequency | 1.1 GHz | |
Intel® Clear Video HD technology | ||
Intel® Flexible Display Interface (Intel® FDI) | ||
Intel® InTru™ 3D technology | ||
Intel® Quick Sync Video | ||
Processor graphics | Intel HD Graphics | |
Graphics interfaces |
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Number of displays supported | 2 | |
Wireless Display (WiDi) support | ||
Compatibility |
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Low Halogen Options Available | ||
Max number of CPUs in a configuration | 1 | 1 |
Package Size | 37.5mm x 37.5mm | 42.5mm x 45.0mm |
Sockets supported | FCLGA1155 | FCLGA1366 |
Thermal Design Power (TDP) | 65 Watt | 130 Watt |
Peripherals |
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PCI Express revision | 2.0 | |
Security & Reliability |
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Execute Disable Bit (EDB) | ||
Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
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Enhanced Intel SpeedStep® technology | ||
Flexible Display interface (FDI) | ||
Idle States | ||
Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | Intel® SSE4.2 |
Intel 64 | ||
Intel® Advanced Vector Extensions (AVX) | ||
Intel® AES New Instructions | ||
Intel® Fast Memory Access | ||
Intel® Flex Memory Access | ||
Intel® Hyper-Threading technology | ||
Intel® Optane™ Memory Supported | ||
Intel® Turbo Boost technology | ||
Intel® vPro™ Platform Eligibility | ||
Thermal Monitoring | ||
Intel® Demand Based Switching | ||
Physical Address Extensions (PAE) | 36-bit | |
Virtualization |
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Intel® Virtualization Technology (VT-x) | ||
Intel® Virtualization Technology for Directed I/O (VT-d) | ||
Intel® VT-x with Extended Page Tables (EPT) |