Pentium G870 vs Athlon II X4 645
Aggregate performance score
Athlon II X4 645 outperforms Pentium G870 by an impressive 54% based on our aggregate benchmark results.
Primary details
Comparing Athlon II X4 645 and Pentium G870 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 2048 | 2381 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.30 | 1.30 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Propus (2009−2011) | Sandy Bridge (2011−2013) |
| Release date | 21 September 2010 (13 years ago) | 3 June 2012 (12 years ago) |
| Launch price (MSRP) | $80 | $97 |
| Current price | $40 (0.5x MSRP) | $24 (0.2x MSRP) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Athlon II X4 645 has 154% better value for money than Pentium G870.
Detailed specifications
Athlon II X4 645 and Pentium G870 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 4 (Quad-Core) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 3.1 GHz | 3.1 GHz |
| Boost clock speed | 3.1 GHz | 3.1 GHz |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 256 KB (per core) |
| L3 cache | 0 KB | 3 MB (shared) |
| Chip lithography | 45 nm | 32 nm |
| Die size | 169 mm2 | 131 mm2 |
| Maximum core temperature | no data | 69 °C |
| Number of transistors | 300 million | 504 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Athlon II X4 645 and Pentium G870 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | AM3 | FCLGA1155 |
| Power consumption (TDP) | 95 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X4 645 and Pentium G870. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2 |
| AES-NI | no data | + |
| AVX | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| Idle States | no data | + |
| Thermal Monitoring | no data | + |
| Flex Memory Access | no data | + |
| FDI | no data | + |
| Fast Memory Access | no data | + |
| Status | no data | Discontinued |
Security technologies
Athlon II X4 645 and Pentium G870 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II X4 645 and Pentium G870 are enumerated here.
| VT-d | no data | - |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 645 and Pentium G870. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | no data | 32 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 21 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® HD Graphics for 2nd Generation Intel® Processors |
| Graphics max frequency | no data | 1.1 GHz |
Graphics interfaces
Available interfaces and connections of Athlon II X4 645 and Pentium G870 integrated GPUs.
| Number of displays supported | no data | 2 |
Peripherals
Specifications and connection of peripherals supported by Athlon II X4 645 and Pentium G870.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | no data | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Athlon II X4 645 outperforms Pentium G870 by 54% based on our aggregate benchmark results.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
Athlon II X4 645 outperforms Pentium G870 by 54% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Pentium G870 outperforms Athlon II X4 645 by 69% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Pentium G870 outperforms Athlon II X4 645 by 4% in GeekBench 5 Multi-Core.
Pros & cons summary
| Performance score | 1.52 | 0.99 |
| Recency | 21 September 2010 | 3 June 2012 |
| Physical cores | 4 | 2 |
| Threads | 4 | 2 |
| Cost | $80 | $97 |
| Chip lithography | 45 nm | 32 nm |
| Power consumption (TDP) | 95 Watt | 65 Watt |
The Athlon II X4 645 is our recommended choice as it beats the Pentium G870 in performance tests.
Should you still have questions on choice between Athlon II X4 645 and Pentium G870, ask them in Comments section, and we shall answer.
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