K6-2/450AFX vs Ryzen 7 5800X
Primary details
Comparing Ryzen 7 5800X and K6-2/450AFX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 375 | not rated |
| Place by popularity | 68 | not in top-100 |
| Cost-effectiveness evaluation | 24.14 | no data |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD Ryzen 7 | AMD K6-2 |
| Power efficiency | 15.76 | no data |
| Architecture codename | Vermeer (Zen 3) (2020−2022) | K6-2 (1998−1999) |
| Release date | 8 October 2020 (4 years ago) | 26 February 1999 (25 years ago) |
| Launch price (MSRP) | $449 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 7 5800X and K6-2/450AFX 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 | 8 (Octa-Core) | 1 (Single-Core) |
| Threads | 16 | 1 |
| Base clock speed | 3.8 GHz | no data |
| Boost clock speed | 4.7 GHz | 0.1 GHz |
| Bus type | no data | FSB |
| Bus rate | no data | 99.99 MT/s |
| Multiplier | 38 | 4.5 |
| L1 cache | 512 KB | no data |
| L2 cache | 4 MB | no data |
| L3 cache | 32 MB | no data |
| Chip lithography | 7 nm, 12 nm | 0.25 µm |
| Die size | 2 x 80.7 sq. mm; I/O = 125 mm2 | 81 mm2 |
| Maximum core temperature | 90 °C | no data |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | no data | 9 Million |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 7 5800X and K6-2/450AFX 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 | no data |
| Socket | AM4 | no data |
| Power consumption (TDP) | 105 Watt | no data |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 5800X and K6-2/450AFX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA | no data |
| AES-NI | + | - |
| AVX | + | - |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 5800X and K6-2/450AFX are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 5800X and K6-2/450AFX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | no data |
| Maximum memory size | 128 GB | 4 GB |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 51.196 GB/s | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 5800X and K6-2/450AFX.
| PCIe version | 4.0 | no data |
Pros & cons summary
| Recency | 8 October 2020 | 26 February 1999 |
| Physical cores | 8 | 1 |
| Threads | 16 | 1 |
Ryzen 7 5800X has an age advantage of 21 year, and 700% more physical cores and 1500% more threads.
We couldn't decide between Ryzen 7 5800X and K6-2/450AFX. We've got no test results to judge.
Should you still have questions on choice between Ryzen 7 5800X and K6-2/450AFX, ask them in Comments section, and we shall answer.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
