Duron 950 vs Athlon II X4 640
Primary details
Comparing Athlon II X4 640 and Duron 950 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2221 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 2.92 | no data |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | AMD Duron |
| Power efficiency | 1.40 | no data |
| Architecture codename | Propus (2009−2011) | Spitfire (2000−2001) |
| Release date | 11 May 2010 (14 years ago) | 6 June 2001 (23 years ago) |
| Launch price (MSRP) | $80 | $122 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon II X4 640 and Duron 950 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) | 1 (Single-Core) |
| Threads | 4 | 1 |
| Base clock speed | 3 GHz | no data |
| Boost clock speed | 3 GHz | 0.95 GHz |
| Bus type | no data | FSB |
| Bus rate | no data | 200 MT/s |
| Multiplier | no data | 9.5 |
| L1 cache | 128 KB (per core) | 128 KB |
| L2 cache | 512 KB (per core) | 64 KB |
| L3 cache | 0 KB | no data |
| Chip lithography | 45 nm | 180 nm |
| Die size | 169 mm2 | 100 mm2 |
| Number of transistors | 300 million | 25 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Athlon II X4 640 and Duron 950 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 (Uniprocessor) |
| Socket | AM3 | A |
| Power consumption (TDP) | 95 Watt | 42 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 640 and Duron 950. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1 Depends on motherboard |
| Maximum memory size | no data | 4 GB |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by Athlon II X4 640 and Duron 950.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 11 May 2010 | 6 June 2001 |
| Physical cores | 4 | 1 |
| Threads | 4 | 1 |
| Chip lithography | 45 nm | 180 nm |
| Power consumption (TDP) | 95 Watt | 42 Watt |
Athlon II X4 640 has an age advantage of 8 years, 300% more physical cores and 300% more threads, and a 300% more advanced lithography process.
Duron 950, on the other hand, has 126.2% lower power consumption.
We couldn't decide between Athlon II X4 640 and Duron 950. We've got no test results to judge.
Should you still have questions on choice between Athlon II X4 640 and Duron 950, ask them in Comments section, and we shall answer.
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