Ryzen Threadripper 2950X vs Athlon 64 FX-55
Aggregate performance score
Ryzen Threadripper 2950X outperforms Athlon 64 FX-55 by a whopping 7161% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3430 | 439 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 6.46 |
| Market segment | Desktop processor | Desktop processor |
| Series | no data | AMD Ryzen Threadripper |
| Power efficiency | 0.09 | 3.94 |
| Designer | AMD | AMD |
| Manufacturer | no data | GlobalFoundries |
| Architecture codename | Clawhammer (2001−2005) | ZEN+ (2018−2019) |
| Release date | 10 October 2004 (21 years ago) | 13 August 2018 (7 years ago) |
| Launch price (MSRP) | $180 | $899 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Athlon 64 FX-55 and Ryzen Threadripper 2950X have a nearly equal value for money.
Performance to price scatter graph
Detailed specifications
Athlon 64 FX-55 and Ryzen Threadripper 2950X 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) | 16 (Hexadeca-Core) |
| Threads | 1 | 32 |
| Base clock speed | 2.6 GHz | 3.5 GHz |
| Boost clock speed | 2.6 GHz | 4.4 GHz |
| Bus rate | no data | 4 × 8 GT/s |
| Multiplier | no data | 35 |
| L1 cache | 128 KB | 96K (per core) |
| L2 cache | 1 MB | 512K (per core) |
| L3 cache | 0 KB | 32 MB |
| Chip lithography | 130 nm | 12 nm |
| Die size | 193 mm2 | 213 mm2 |
| Maximum case temperature (TCase) | 63 °C | no data |
| Number of transistors | 105 million | 19,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | + |
Compatibility
Information on Athlon 64 FX-55 and Ryzen Threadripper 2950X 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 (Uniprocessor) |
| Socket | 939 | Socket TR4 |
| Power consumption (TDP) | 104 Watt | 180 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon 64 FX-55 and Ryzen Threadripper 2950X. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon 64 FX-55 and Ryzen Threadripper 2950X are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-55 and Ryzen Threadripper 2950X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 Depends on motherboard | DDR4 Quad-channel |
| Maximum memory size | no data | 2 TiB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 93.867 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | - |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 0.23 | 16.70 |
| Recency | 10 October 2004 | 13 August 2018 |
| Physical cores | 1 | 16 |
| Threads | 1 | 32 |
| Chip lithography | 130 nm | 12 nm |
| Power consumption (TDP) | 104 Watt | 180 Watt |
Athlon 64 FX-55 has 73.1% lower power consumption.
Ryzen Threadripper 2950X, on the other hand, has a 7160.9% higher aggregate performance score, an age advantage of 13 years, 1500% more physical cores and 3100% more threads, and a 983.3% more advanced lithography process.
The AMD Ryzen Threadripper 2950X is our recommended choice as it beats the AMD Athlon 64 FX-55 in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
