Opteron X2 185 vs Athlon 64 FX-55
Primary details
Comparing Athlon 64 FX-55 and Opteron X2 185 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Architecture codename | Clawhammer (2001−2005) | Denmark (2005−2006) |
| Release date | 10 October 2004 (20 years ago) | 6 March 2006 (18 years ago) |
| Launch price (MSRP) | $180 | $435 |
Detailed specifications
Athlon 64 FX-55 and Opteron X2 185 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) | 2 (Dual-core) |
| Threads | 1 | 2 |
| Base clock speed | 2.6 GHz | 2.6 GHz |
| Boost clock speed | 2.6 GHz | 2.6 GHz |
| L1 cache | 128 KB | 128 KB |
| L2 cache | 1 MB | 1 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 130 nm | 90 nm |
| Die size | 193 mm2 | 199 mm2 |
| Maximum case temperature (TCase) | 63 °C | no data |
| Number of transistors | 105 million | 233 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Athlon 64 FX-55 and Opteron X2 185 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 | 2 |
| Socket | 939 | 939 |
| Power consumption (TDP) | 104 Watt | 110 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-55 and Opteron X2 185. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 Depends on motherboard | DDR1 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | On certain motherboards (Chipset feature) |
Pros & cons summary
| Recency | 10 October 2004 | 6 March 2006 |
| Physical cores | 1 | 2 |
| Threads | 1 | 2 |
| Chip lithography | 130 nm | 90 nm |
| Power consumption (TDP) | 104 Watt | 110 Watt |
Athlon 64 FX-55 has 5.8% lower power consumption.
Opteron X2 185, on the other hand, has an age advantage of 1 year, 100% more physical cores and 100% more threads, and a 44.4% more advanced lithography process.
We couldn't decide between Athlon 64 FX-55 and Opteron X2 185. We've got no test results to judge.
Note that Athlon 64 FX-55 is a desktop processor while Opteron X2 185 is a server/workstation one.
Should you still have questions on choice between Athlon 64 FX-55 and Opteron X2 185, ask them in Comments section, and we shall answer.
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