Athlon 64 X2 3800+ vs Athlon 64 FX-72
Aggregate performance score
Athlon 64 FX-72 outperforms Athlon 64 X2 3800+ by a whopping 183% based on our aggregate benchmark results.
Primary details
Comparing Athlon 64 FX-72 and Athlon 64 X2 3800+ processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2396 | 3009 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 0.85 | 0.42 |
| Architecture codename | Windsor (2006−2007) | Manchester (2005−2006) |
| Release date | November 2006 (18 years ago) | August 2005 (19 years ago) |
Detailed specifications
Athlon 64 FX-72 and Athlon 64 X2 3800+ 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) | 2 (Dual-core) |
| Threads | 2 | 2 |
| Boost clock speed | 2.8 GHz | 2 GHz |
| L1 cache | 128 KB | 256K |
| L2 cache | 1 MB | 512 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 90 nm | 90 nm |
| Die size | 235 mm2 | 220 mm2 |
| Number of transistors | 227 million | 154 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Athlon 64 FX-72 and Athlon 64 X2 3800+ 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 | F | 939 |
| Power consumption (TDP) | 125 Watt | 89 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-72 and Athlon 64 X2 3800+. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | no data |
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.
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
| Performance score | 1.13 | 0.40 |
| Power consumption (TDP) | 125 Watt | 89 Watt |
Athlon 64 FX-72 has a 182.5% higher aggregate performance score.
Athlon 64 X2 3800+, on the other hand, has 40.4% lower power consumption.
The Athlon 64 FX-72 is our recommended choice as it beats the Athlon 64 X2 3800+ in performance tests.
Should you still have questions on choice between Athlon 64 FX-72 and Athlon 64 X2 3800+, ask them in Comments section, and we shall answer.
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