EPYC 7543 vs Phenom X4 9950 BE (140W)
Primary details
Comparing Phenom X4 9950 BE (140W) and EPYC 7543 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 76 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 8.03 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD EPYC |
| Power efficiency | no data | 16.13 |
| Architecture codename | Agena (2007−2008) | Milan (2021−2023) |
| Release date | March 2008 (16 years ago) | 15 March 2021 (3 years ago) |
| Launch price (MSRP) | no data | $3,761 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom X4 9950 BE (140W) and EPYC 7543 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 | 4 (Quad-Core) | 32 (Dotriaconta-Core) |
| Threads | 4 | 64 |
| Base clock speed | no data | 2.8 GHz |
| Boost clock speed | 2.6 GHz | 3.7 GHz |
| Multiplier | no data | 28 |
| L1 cache | 128 KB (per core) | 64 KB (per core) |
| L2 cache | 512 KB (per core) | 512 KB (per core) |
| L3 cache | 2 MB (shared) | 256 MB (shared) |
| Chip lithography | 65 nm | 7 nm+ |
| Die size | 285 mm2 | 8x 81 mm2 |
| Number of transistors | 450 million | 33,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Phenom X4 9950 BE (140W) and EPYC 7543 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 | AM2+ | SP3 |
| Power consumption (TDP) | 140 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom X4 9950 BE (140W) and EPYC 7543. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom X4 9950 BE (140W) and EPYC 7543 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom X4 9950 BE (140W) and EPYC 7543. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4-3200 |
| Maximum memory size | no data | 4 TiB |
| Maximum memory bandwidth | no data | 204.795 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Phenom X4 9950 BE (140W) and EPYC 7543.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Physical cores | 4 | 32 |
| Threads | 4 | 64 |
| Chip lithography | 65 nm | 7 nm |
| Power consumption (TDP) | 140 Watt | 225 Watt |
Phenom X4 9950 BE (140W) has 60.7% lower power consumption.
EPYC 7543, on the other hand, has 700% more physical cores and 1500% more threads, and a 828.6% more advanced lithography process.
We couldn't decide between Phenom X4 9950 BE (140W) and EPYC 7543. We've got no test results to judge.
Note that Phenom X4 9950 BE (140W) is a desktop processor while EPYC 7543 is a server/workstation one.
Should you still have questions on choice between Phenom X4 9950 BE (140W) and EPYC 7543, ask them in Comments section, and we shall answer.
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