AMD Phenom II X4 840T vs Intel Core i7-875K
Comparative analysis of AMD Phenom II X4 840T and Intel Core i7-875K processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Virtualization, Peripherals, Security & Reliability, Advanced Technologies. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark, 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), Geekbench 4 - Single Core, Geekbench 4 - Multi-Core, CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).
Differences
Reasons to consider the AMD Phenom II X4 840T
- CPU is newer: launch date 4 month(s) later
- 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
- 3.9x better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 3.606 vs 0.925
| Specifications (specs) | |
| Launch date | September 2010 vs May 2010 |
| L1 cache | 128 KB (per core) vs 64 KB (per core) |
| L2 cache | 512 KB (per core) vs 256 KB (per core) |
| Benchmarks | |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 3.606 vs 0.925 |
Reasons to consider the Intel Core i7-875K
- Processor is unlocked, an unlocked multiplier allows for easier overclocking
- Around 24% higher clock speed: 3.60 GHz vs 2.9 GHz
- Around 33% more L3 cache; more data can be stored in the L3 cache for quick access later
- Around 6% better performance in PassMark - Single thread mark: 1351 vs 1272
- Around 31% better performance in PassMark - CPU mark: 3100 vs 2360
- 5.4x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 51.608 vs 9.486
- Around 88% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.35 vs 0.186
| Specifications (specs) | |
| Unlocked | Unlocked vs Locked |
| Maximum frequency | 3.60 GHz vs 2.9 GHz |
| L3 cache | 8192 KB (shared) vs 6144 KB (shared) |
| Benchmarks | |
| PassMark - Single thread mark | 1351 vs 1272 |
| PassMark - CPU mark | 3100 vs 2360 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 51.608 vs 9.486 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.35 vs 0.186 |
Compare benchmarks
CPU 1: AMD Phenom II X4 840T
CPU 2: Intel Core i7-875K
| PassMark - Single thread mark |
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| PassMark - CPU mark |
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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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| CompuBench 1.5 Desktop - T-Rex (Frames/s) |
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| Name | AMD Phenom II X4 840T | Intel Core i7-875K |
|---|---|---|
| PassMark - Single thread mark | 1272 | 1351 |
| PassMark - CPU mark | 2360 | 3100 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 3.606 | 0.925 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 9.486 | 51.608 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.186 | 0.35 |
| Geekbench 4 - Single Core | 567 | |
| Geekbench 4 - Multi-Core | 2163 | |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 1.146 | |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 4.459 |
Compare specifications (specs)
| AMD Phenom II X4 840T | Intel Core i7-875K | |
|---|---|---|
Essentials |
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| Architecture codename | Zosma | Lynnfield |
| Launch date | September 2010 | May 2010 |
| Launch price (MSRP) | $80 | $486 |
| Place in performance rating | 2712 | 2715 |
| Price now | $69.99 | $485.01 |
| Value for money (0-100) | 15.15 | 3.30 |
| Vertical segment | Desktop | Desktop |
| Processor Number | i7-875K | |
| Series | Legacy Intel® Core™ Processors | |
| Status | Discontinued | |
Performance |
||
| 64 bit support | ||
| Die size | 346 mm | 296 mm2 |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 256 KB (per core) |
| L3 cache | 6144 KB (shared) | 8192 KB (shared) |
| Manufacturing process technology | 45 nm | 45 nm |
| Maximum frequency | 2.9 GHz | 3.60 GHz |
| Number of cores | 4 | 4 |
| Transistor count | 904 million | 774 million |
| Base frequency | 2.93 GHz | |
| Bus Speed | 2.5 GT/s DMI | |
| Maximum core temperature | 72.7°C | |
| Number of threads | 8 | |
| Unlocked | ||
| VID voltage range | 0.6500V-1.4000V | |
Memory |
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| Supported memory types | DDR3 | DDR3 1066/1333 |
| Max memory channels | 2 | |
| Maximum memory bandwidth | 21 GB/s | |
| Maximum memory size | 16 GB | |
Compatibility |
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| Max number of CPUs in a configuration | 1 | 1 |
| Sockets supported | AM3 | LGA1156 |
| Thermal Design Power (TDP) | 95 Watt | 95 Watt |
| Low Halogen Options Available | ||
| Package Size | 37.5mm x 37.5mm | |
Virtualization |
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| AMD Virtualization (AMD-V™) | ||
| Intel® Virtualization Technology (VT-x) | ||
| Intel® VT-x with Extended Page Tables (EPT) | ||
Peripherals |
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| Max number of PCIe lanes | 16 | |
| PCI Express revision | 2.0 | |
| PCIe configurations | 1x16, 2x8 | |
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 | ||
| Intel® vPro™ Platform Eligibility | ||
| Physical Address Extensions (PAE) | 36-bit | |
| Thermal Monitoring | ||
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