A4-9120C vs EPYC 9455P
Aggregate performance score
EPYC 9455P outperforms A4-9120C by a whopping 12986% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 23 | 3161 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 11.73 | no data |
| Market segment | Server | Laptop |
| Series | no data | AMD Bristol Ridge |
| Power efficiency | 9.39 | 3.59 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Turin (2024) | Stoney Ridge (2016−2019) |
| Release date | 10 October 2024 (1 year ago) | 6 January 2019 (7 years ago) |
| Launch price (MSRP) | $4,819 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 9455P and A4-9120C 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 | 48 (Octatetraconta-Core) | 2 (Dual-core) |
| Threads | 96 | 2 |
| Base clock speed | 3.15 GHz | no data |
| Boost clock speed | 4.4 GHz | 1.6 GHz |
| Multiplier | no data | 16 |
| L1 cache | 80 KB (per core) | 160 KB |
| L2 cache | 1 MB (per core) | 1 MB |
| L3 cache | 256 MB (shared) | no data |
| Chip lithography | 4 nm | 28 nm |
| Die size | 8x 70.6 mm2 | 124.5 mm2 |
| Number of transistors | 66,520 million | 1200 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on EPYC 9455P and A4-9120C 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 | SP5 | BGA |
| Power consumption (TDP) | 300 Watt | 6 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9455P and A4-9120C. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Virtualization, |
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9455P and A4-9120C are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9455P and A4-9120C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4 |
| Maximum memory bandwidth | no data | 14.936 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon R4 (Stoney Ridge) ( - 600 MHz) |
Peripherals
Specifications and connection of peripherals supported by EPYC 9455P and A4-9120C.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 128 | no data |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 66.74 | 0.51 |
| Recency | 10 October 2024 | 6 January 2019 |
| Physical cores | 48 | 2 |
| Threads | 96 | 2 |
| Chip lithography | 4 nm | 28 nm |
| Power consumption (TDP) | 300 Watt | 6 Watt |
EPYC 9455P has a 12986.3% higher aggregate performance score, an age advantage of 5 years, 2300% more physical cores and 4700% more threads, and a 600% more advanced lithography process.
A4-9120C, on the other hand, has 4900% lower power consumption.
The AMD EPYC 9455P is our recommended choice as it beats the AMD A4-9120C in performance tests.
Be aware that EPYC 9455P is a server/workstation processor while A4-9120C is a notebook one.
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