Ryzen 9 5900HX vs Athlon 64 FX-76
Primary details
Comparing Athlon 64 FX-76 and Ryzen 9 5900HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 514 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | AMD Cezanne (Zen 3, Ryzen 5000) |
| Power efficiency | no data | 29.78 |
| Architecture codename | Windsor (2006−2007) | Cezanne-H (Zen 3) (2021) |
| Release date | November 2006 (18 years ago) | 12 January 2021 (3 years ago) |
Detailed specifications
Athlon 64 FX-76 and Ryzen 9 5900HX 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) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | no data | 3.3 GHz |
| Boost clock speed | 3.2 GHz | 4.6 GHz |
| Multiplier | no data | 33 |
| L1 cache | 128 KB | 64K (per core) |
| L2 cache | 1 MB | 512K (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 90 nm | 7 nm |
| Die size | 235 mm2 | 156 mm2 |
| Maximum core temperature | no data | 105 °C |
| Number of transistors | 227 million | 9,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Athlon 64 FX-76 and Ryzen 9 5900HX 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 | FP6 |
| Power consumption (TDP) | 125 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon 64 FX-76 and Ryzen 9 5900HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA |
| AES-NI | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon 64 FX-76 and Ryzen 9 5900HX are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-76 and Ryzen 9 5900HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | DDR4 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon RX Vega 8 (Ryzen 4000/5000) ( - 2100 MHz) |
Peripherals
Specifications and connection of peripherals supported by Athlon 64 FX-76 and Ryzen 9 5900HX.
| PCIe version | no data | 3.0 |
Pros & cons summary
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Chip lithography | 90 nm | 7 nm |
| Power consumption (TDP) | 125 Watt | 45 Watt |
Ryzen 9 5900HX has 300% more physical cores and 700% more threads, a 1185.7% more advanced lithography process, and 177.8% lower power consumption.
We couldn't decide between Athlon 64 FX-76 and Ryzen 9 5900HX. We've got no test results to judge.
Note that Athlon 64 FX-76 is a desktop processor while Ryzen 9 5900HX is a notebook one.
Should you still have questions on choice between Athlon 64 FX-76 and Ryzen 9 5900HX, 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.
