Athlon 64 FX-51 vs Core 2 Extreme X6800
Primary details
Comparing Core 2 Extreme (Desktop) X6800 and Athlon 64 FX-51 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2710 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | Core 2 Extreme (Desktop) | no data |
| Power efficiency | 0.87 | no data |
| Architecture codename | Conroe (2006−2007) | SledgeHammer (2003−2005) |
| Release date | no data (2024 years ago) | September 2003 (21 year ago) |
Detailed specifications
Core 2 Extreme (Desktop) X6800 and Athlon 64 FX-51 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 | 2 (Dual-core) | 1 (Single-Core) |
| Threads | 2 | 1 |
| Boost clock speed | 2.93 GHz | 2.2 GHz |
| Bus rate | 1066 MHz | no data |
| L1 cache | no data | 128 KB |
| L2 cache | no data | 1 MB |
| L3 cache | no data | 0 KB |
| Chip lithography | 65 nm | 130 nm |
| Die size | no data | 193 mm2 |
| Number of transistors | no data | 105 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core 2 Extreme (Desktop) X6800 and Athlon 64 FX-51 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 | no data | 1 |
| Socket | no data | 940 |
| Power consumption (TDP) | 75 Watt | 89 Watt |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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.
Pros & cons summary
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 65 nm | 130 nm |
| Power consumption (TDP) | 75 Watt | 89 Watt |
Core 2 Extreme X6800 has 100% more physical cores and 100% more threads, a 100% more advanced lithography process, and 18.7% lower power consumption.
We couldn't decide between Core 2 Extreme X6800 and Athlon 64 FX-51. We've got no test results to judge.
Should you still have questions on choice between Core 2 Extreme X6800 and Athlon 64 FX-51, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
