AMD Athlon II X4 645 vs Intel Core i7-920
Comparative analysis of AMD Athlon II X4 645 and Intel Core i7-920 processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, 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 - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), 3DMark Fire Strike - Physics Score, CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).
Differences
Reasons to consider the AMD Athlon II X4 645
- CPU is newer: launch date 1 year(s) 10 month(s) later
- Around 6% higher clock speed: 3.1 GHz vs 2.93 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
- Around 37% lower typical power consumption: 95 Watt vs 130 Watt
- Around 3% better performance in PassMark - Single thread mark: 1256 vs 1217
- 2.4x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 2.103 vs 0.873
Specifications (specs) | |
Launch date | September 2010 vs November 2008 |
Maximum frequency | 3.1 GHz vs 2.93 GHz |
L1 cache | 128 KB (per core) vs 64 KB (per core) |
L2 cache | 512 KB (per core) vs 256 KB (per core) |
Thermal Design Power (TDP) | 95 Watt vs 130 Watt |
Benchmarks | |
PassMark - Single thread mark | 1256 vs 1217 |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.103 vs 0.873 |
Reasons to consider the Intel Core i7-920
- Around 21% better performance in PassMark - CPU mark: 2840 vs 2348
- Around 25% better performance in Geekbench 4 - Single Core: 469 vs 375
- Around 53% better performance in Geekbench 4 - Multi-Core: 1855 vs 1215
- 5.3x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 50.388 vs 9.496
Benchmarks | |
PassMark - CPU mark | 2840 vs 2348 |
Geekbench 4 - Single Core | 469 vs 375 |
Geekbench 4 - Multi-Core | 1855 vs 1215 |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 50.388 vs 9.496 |
Compare benchmarks
CPU 1: AMD Athlon II X4 645
CPU 2: Intel Core i7-920
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 - Face Detection (mPixels/s) |
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CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) |
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Name | AMD Athlon II X4 645 | Intel Core i7-920 |
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PassMark - Single thread mark | 1256 | 1217 |
PassMark - CPU mark | 2348 | 2840 |
Geekbench 4 - Single Core | 375 | 469 |
Geekbench 4 - Multi-Core | 1215 | 1855 |
CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 2.103 | 0.873 |
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 9.496 | 50.388 |
3DMark Fire Strike - Physics Score | 2227 | |
CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.3 | |
CompuBench 1.5 Desktop - Video Composition (Frames/s) | 1.595 | |
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 4 |
Compare specifications (specs)
AMD Athlon II X4 645 | Intel Core i7-920 | |
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Essentials |
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Architecture codename | Propus | Bloomfield |
Launch date | September 2010 | November 2008 |
Launch price (MSRP) | $80 | $340 |
Place in performance rating | 2780 | 2767 |
Price now | $49.99 | $174 |
Value for money (0-100) | 20.48 | 8.34 |
Vertical segment | Desktop | Desktop |
Processor Number | i7-920 | |
Series | Legacy Intel® Core™ Processors | |
Status | Discontinued | |
Performance |
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64 bit support | ||
Die size | 169 mm | 263 mm2 |
L1 cache | 128 KB (per core) | 64 KB (per core) |
L2 cache | 512 KB (per core) | 256 KB (per core) |
Manufacturing process technology | 45 nm | 45 nm |
Maximum frequency | 3.1 GHz | 2.93 GHz |
Number of cores | 4 | 4 |
Transistor count | 300 million | 731 million |
Base frequency | 2.66 GHz | |
Bus Speed | 4.8 GT/s QPI | |
Front-side bus (FSB) | 1333 MHz | |
L3 cache | 8192 KB (shared) | |
Maximum core temperature | 67.9°C | |
Number of QPI Links | 1 | |
Number of threads | 8 | |
VID voltage range | 0.800V-1.375V | |
Memory |
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Supported memory types | DDR3 | DDR3 800/1066 |
Max memory channels | 3 | |
Maximum memory bandwidth | 25.6 GB/s | |
Maximum memory size | 24 GB | |
Compatibility |
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Max number of CPUs in a configuration | 1 | 1 |
Sockets supported | AM3 | FCLGA1366 |
Thermal Design Power (TDP) | 95 Watt | 130 Watt |
Low Halogen Options Available | ||
Package Size | 42.5mm x 45.0mm | |
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 | ||
Idle States | ||
Instruction set extensions | Intel® SSE4.2 | |
Intel 64 | ||
Intel® AES New Instructions | ||
Intel® Demand Based Switching | ||
Intel® Hyper-Threading technology | ||
Intel® Turbo Boost technology | ||
Physical Address Extensions (PAE) | 36-bit | |
Thermal Monitoring | ||
Virtualization |
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Intel® Virtualization Technology (VT-x) | ||
Intel® VT-x with Extended Page Tables (EPT) |