Phenom II X4 955 (95W) vs Athlon 650
Primary details
Comparing Athlon 650 and Phenom II X4 955 (95W) processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Thunderbird (2000) | Deneb (2009−2011) |
| Release date | June 2000 (23 years ago) | April 2009 (15 years ago) |
| Current price | $50 | $65 |
Detailed specifications
Athlon 650 and Phenom II X4 955 (95W) 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 | 1 (Single-Core) | 4 (Quad-Core) |
| Threads | 1 | 4 |
| Boost clock speed | 0.65 GHz | 3.2 GHz |
| L1 cache | 128 KB | 128 KB (per core) |
| L2 cache | 256 KB | 512 KB (per core) |
| L3 cache | 0 KB | 6 MB (shared) |
| Chip lithography | 180 nm | 45 nm |
| Die size | 120 mm2 | 258 mm2 |
| Number of transistors | 37 million | 758 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Athlon 650 and Phenom II X4 955 (95W) 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 | A | AM3 |
| Power consumption (TDP) | 38 Watt | 95 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 650 and Phenom II X4 955 (95W). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | DDR3 |
Pros & cons summary
| Physical cores | 1 | 4 |
| Threads | 1 | 4 |
| Chip lithography | 180 nm | 45 nm |
| Power consumption (TDP) | 38 Watt | 95 Watt |
We couldn't decide between Athlon 650 and Phenom II X4 955 (95W). We've got no test results to judge.
Should you still have questions on choice between Athlon 650 and Phenom II X4 955 (95W), ask them in Comments section, and we shall answer.
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