Ryzen 9 7900X vs Athlon X2 7850 BE
Primary details
Comparing Athlon X2 7850 BE and Ryzen 9 7900X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 121 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | no data | 18.12 |
| Architecture codename | Kuma (2008−2009) | Raphael (Zen4) (2022−2023) |
| Release date | 28 April 2009 (15 years ago) | 27 September 2022 (2 years ago) |
Detailed specifications
Athlon X2 7850 BE and Ryzen 9 7900X 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) | 12 (Dodeca-Core) |
| Threads | 2 | 24 |
| Base clock speed | 2.8 GHz | 4.7 GHz |
| Boost clock speed | 2.8 GHz | 5.6 GHz |
| L1 cache | 128 KB (per core) | 64K (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 2 MB (shared) | 64 MB (shared) |
| Chip lithography | 65 nm | 5 nm |
| Die size | 285 mm2 | 2x 70 (CCD) mm2 + 122 (I/O) mm2 |
| Maximum core temperature | no data | 95 °C |
| Maximum case temperature (TCase) | no data | 47 °C |
| Number of transistors | 450 million | CCD: 6,5 Mrd + IOD: 3,4 Mrd Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | + |
Compatibility
Information on Athlon X2 7850 BE and Ryzen 9 7900X 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 | AM2+ | AM5 |
| Power consumption (TDP) | 95 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon X2 7850 BE and Ryzen 9 7900X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475V |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon X2 7850 BE and Ryzen 9 7900X are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon X2 7850 BE and Ryzen 9 7900X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | unknown | DDR5-5200 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | AMD Radeon Graphics (Ryzen 7000) |
Peripherals
Specifications and connection of peripherals supported by Athlon X2 7850 BE and Ryzen 9 7900X.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | no data | 24 |
Pros & cons summary
| Recency | 28 April 2009 | 27 September 2022 |
| Physical cores | 2 | 12 |
| Threads | 2 | 24 |
| Chip lithography | 65 nm | 5 nm |
| Power consumption (TDP) | 95 Watt | 170 Watt |
Athlon X2 7850 BE has 78.9% lower power consumption.
Ryzen 9 7900X, on the other hand, has an age advantage of 13 years, 500% more physical cores and 1100% more threads, and a 1200% more advanced lithography process.
We couldn't decide between Athlon X2 7850 BE and Ryzen 9 7900X. We've got no test results to judge.
Should you still have questions on choice between Athlon X2 7850 BE and Ryzen 9 7900X, 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.
