EPYC 9634 vs FX-8320
Aggregate performance score
EPYC 9634 outperforms FX-8320 by a whopping 1881% based on our aggregate benchmark results.
Primary details
Comparing FX-8320 and EPYC 9634 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1545 | 9 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.98 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD EPYC |
| Power efficiency | 2.60 | 22.18 |
| Architecture codename | Vishera (2012−2015) | Genoa (2022−2023) |
| Release date | 23 October 2012 (12 years ago) | 10 November 2022 (1 year ago) |
| Launch price (MSRP) | no data | $10,304 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
FX-8320 and EPYC 9634 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) | 84 |
| Threads | 8 | 168 |
| Base clock speed | 3.5 GHz | 2.25 GHz |
| Boost clock speed | 4 GHz | 2.25 GHz |
| Multiplier | no data | 22.5 |
| L1 cache | no data | 5376 KB |
| L2 cache | 8192 KB | 84 MB |
| L3 cache | no data | 384 MB (shared) |
| Chip lithography | 32 nm | 5 nm, 6 nm |
| Die size | 315 mm2 | 12x 72 mm2 |
| Maximum core temperature | 61 °C | no data |
| Number of transistors | 1,200 million | 78,840 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
| P0 Vcore voltage | Min: 1.2 V - Max: 1.4 V | no data |
Compatibility
Information on FX-8320 and EPYC 9634 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 | AM3+ | SP5 |
| Power consumption (TDP) | 125 Watt | 290 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by FX-8320 and EPYC 9634. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by FX-8320 and EPYC 9634 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by FX-8320 and EPYC 9634. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-4800 |
| Maximum memory size | no data | 6 TiB |
| Maximum memory bandwidth | no data | 460.8 GB/s |
Peripherals
Specifications and connection of peripherals supported by FX-8320 and EPYC 9634.
| PCIe version | n/a | 5.0 |
| PCI Express lanes | no data | 128 |
Synthetic benchmark performance
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
Pros & cons summary
| Performance score | 3.56 | 70.53 |
| Recency | 23 October 2012 | 10 November 2022 |
| Physical cores | 8 | 84 |
| Threads | 8 | 168 |
| Chip lithography | 32 nm | 5 nm |
| Power consumption (TDP) | 125 Watt | 290 Watt |
FX-8320 has 132% lower power consumption.
EPYC 9634, on the other hand, has a 1881.2% higher aggregate performance score, an age advantage of 10 years, 950% more physical cores and 2000% more threads, and a 540% more advanced lithography process.
The EPYC 9634 is our recommended choice as it beats the FX-8320 in performance tests.
Note that FX-8320 is a desktop processor while EPYC 9634 is a server/workstation one.
Should you still have questions on choice between FX-8320 and EPYC 9634, ask them in Comments section, and we shall answer.
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