Athlon 650 vs Athlon II X4 651
Primary details
Comparing Athlon II X4 651 and Athlon 650 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1812 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 2.13 | no data |
| Architecture codename | Llano (2011−2012) | Thunderbird (1999−2000) |
| Release date | 14 November 2011 (12 years ago) | 29 November 1999 (24 years ago) |
| Launch price (MSRP) | no data | $849 |
Detailed specifications
Athlon II X4 651 and Athlon 650 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 | 0.65 GHz |
| L1 cache | 128 KB (per core) | 128 KB |
| L2 cache | 1 MB (per core) | 512 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 32 nm | 180 nm |
| Die size | 228 mm2 | 102 mm2 |
| Maximum case temperature (TCase) | no data | 70 °C |
| Number of transistors | 1,178 million | 22 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Athlon II X4 651 and Athlon 650 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 | FM1 | A |
| Power consumption (TDP) | 100 Watt | 30 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II X4 651 and Athlon 650 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 651 and Athlon 650. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Pros & cons summary
| Recency | 14 November 2011 | 29 November 1999 |
| Physical cores | 4 | 1 |
| Threads | 4 | 1 |
| Chip lithography | 32 nm | 180 nm |
| Power consumption (TDP) | 100 Watt | 30 Watt |
Athlon II X4 651 has an age advantage of 11 years, 300% more physical cores and 300% more threads, and a 462.5% more advanced lithography process.
Athlon 650, on the other hand, has 233.3% lower power consumption.
We couldn't decide between Athlon II X4 651 and Athlon 650. We've got no test results to judge.
Should you still have questions on choice between Athlon II X4 651 and Athlon 650, ask them in Comments section, and we shall answer.
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