Intel Core i7-3820 vs AMD Phenom II X6 1045T
Comparative analysis of Intel Core i7-3820 and AMD Phenom II X6 1045T processors for all known characteristics in the following categories: Essentials, Performance, Memory, 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, 3DMark Fire Strike - Physics Score, 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), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s).
Differences
Reasons to consider the Intel Core i7-3820
- CPU is newer: launch date 1 year(s) 5 month(s) later
- Around 19% higher clock speed: 3.80 GHz vs 3.2 GHz
- A newer manufacturing process allows for a more powerful, yet cooler running processor: 32 nm vs 45 nm
- Around 67% more L3 cache; more data can be stored in the L3 cache for quick access later
- Around 36% better performance in PassMark - Single thread mark: 1746 vs 1284
- Around 80% better performance in PassMark - CPU mark: 5773 vs 3210
- 5.9x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 84.218 vs 14.359
- 2.2x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 0.606 vs 0.277
- 6x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 2.267 vs 0.376
- Around 6% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 5.758 vs 5.413
| Specifications (specs) | |
| Launch date | February 2012 vs September 2010 |
| Maximum frequency | 3.80 GHz vs 3.2 GHz |
| Manufacturing process technology | 32 nm vs 45 nm |
| L3 cache | 10240 KB (shared) vs 6 MB |
| Benchmarks | |
| PassMark - Single thread mark | 1746 vs 1284 |
| PassMark - CPU mark | 5773 vs 3210 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 84.218 vs 14.359 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.606 vs 0.277 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 2.267 vs 0.376 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 5.758 vs 5.413 |
Reasons to consider the AMD Phenom II X6 1045T
- 2 more cores, run more applications at once: 6 vs 4
- Around 6% higher maximum core temperature: 71°C vs 66.8°C
- 3x more L1 cache, more data can be stored in the L1 cache for quick access later
- 3x 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
- 2.5x better performance in Geekbench 4 - Single Core: 1915 vs 756
- 2.3x better performance in Geekbench 4 - Multi-Core: 7420 vs 3163
- Around 13% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 5.255 vs 4.665
| Specifications (specs) | |
| Number of cores | 6 vs 4 |
| Maximum core temperature | 71°C vs 66.8°C |
| L1 cache | 768 KB vs 64 KB (per core) |
| L2 cache | 3 MB vs 256 KB (per core) |
| Thermal Design Power (TDP) | 95 Watt vs 130 Watt |
| Benchmarks | |
| Geekbench 4 - Single Core | 1915 vs 756 |
| Geekbench 4 - Multi-Core | 7420 vs 3163 |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 5.255 vs 4.665 |
Compare benchmarks
CPU 1: Intel Core i7-3820
CPU 2: AMD Phenom II X6 1045T
| 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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| CompuBench 1.5 Desktop - T-Rex (Frames/s) |
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| CompuBench 1.5 Desktop - Video Composition (Frames/s) |
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| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) |
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| Name | Intel Core i7-3820 | AMD Phenom II X6 1045T |
|---|---|---|
| PassMark - Single thread mark | 1746 | 1284 |
| PassMark - CPU mark | 5773 | 3210 |
| Geekbench 4 - Single Core | 756 | 1915 |
| Geekbench 4 - Multi-Core | 3163 | 7420 |
| 3DMark Fire Strike - Physics Score | 3318 | |
| CompuBench 1.5 Desktop - Face Detection (mPixels/s) | 4.665 | 5.255 |
| CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s) | 84.218 | 14.359 |
| CompuBench 1.5 Desktop - T-Rex (Frames/s) | 0.606 | 0.277 |
| CompuBench 1.5 Desktop - Video Composition (Frames/s) | 2.267 | 0.376 |
| CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s) | 5.758 | 5.413 |
Compare specifications (specs)
| Intel Core i7-3820 | AMD Phenom II X6 1045T | |
|---|---|---|
Essentials |
||
| Architecture codename | Sandy Bridge E | Thuban |
| Launch date | February 2012 | September 2010 |
| Launch price (MSRP) | $400 | $175 |
| Place in performance rating | 2234 | 2221 |
| Price now | $199.99 | $175 |
| Processor Number | i7-3820 | |
| Series | Intel® Core™ X-series Processors | AMD Phenom II X6 |
| Status | Discontinued | |
| Value for money (0-100) | 13.26 | 8.11 |
| Vertical segment | Desktop | Desktop |
| Family | AMD Phenom | |
| OPN PIB | HDT45TWFGRBOX | |
| OPN Tray | HDT45TWFK6DGR | |
Performance |
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| 64 bit support | ||
| Base frequency | 3.60 GHz | 2.7 GHz |
| Bus Speed | 5 GT/s DMI2 | |
| Die size | 294 mm | 346 mm |
| L1 cache | 64 KB (per core) | 768 KB |
| L2 cache | 256 KB (per core) | 3 MB |
| L3 cache | 10240 KB (shared) | 6 MB |
| Manufacturing process technology | 32 nm | 45 nm |
| Maximum case temperature (TCase) | 67 °C | |
| Maximum core temperature | 66.8°C | 71°C |
| Maximum frequency | 3.80 GHz | 3.2 GHz |
| Number of cores | 4 | 6 |
| Number of threads | 8 | |
| Transistor count | 1270 million | 904 million |
| VID voltage range | 0.600V – 1.350V | |
| Unlocked | ||
Memory |
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| Max memory channels | 4 | |
| Maximum memory bandwidth | 51.2 GB/s | |
| Maximum memory size | 64.23 GB | |
| Supported memory types | DDR3 1066/1333/1600 | DDR3 |
Compatibility |
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| Low Halogen Options Available | ||
| Max number of CPUs in a configuration | 1 | 1 |
| Package Size | 52.5mm x 45.0mm | |
| Sockets supported | FCLGA2011 | AM3 |
| Thermal Design Power (TDP) | 130 Watt | 95 Watt |
Peripherals |
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| Max number of PCIe lanes | 40 | |
| PCI Express revision | 2.0 | |
Security & Reliability |
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| Execute Disable Bit (EDB) | ||
| Intel® Identity Protection technology | ||
| Intel® Trusted Execution technology (TXT) | ||
Advanced Technologies |
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| Enhanced Intel SpeedStep® technology | ||
| Idle States | ||
| Instruction set extensions | Intel® SSE4.2, Intel® AVX | |
| Intel 64 | ||
| Intel® Advanced Vector Extensions (AVX) | ||
| Intel® AES New Instructions | ||
| Intel® Demand Based Switching | ||
| Intel® Hyper-Threading technology | ||
| Intel® Smart Response technology | ||
| Intel® Turbo Boost technology | ||
| Intel® vPro™ Platform Eligibility | ||
| Thermal Monitoring | ||
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) | ||
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