EPYC 7402 vs Athlon II M340
Aggregate performance score
EPYC 7402 outperforms Athlon II M340 by a whopping 5580% based on our aggregate benchmark results.
Primary details
Comparing Athlon II M340 and EPYC 7402 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2885 | 156 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 10.51 |
| Market segment | Laptop | Server |
| Series | AMD Athlon II | AMD EPYC |
| Power efficiency | 1.38 | 15.23 |
| Architecture codename | Caspian (2009) | Zen 2 (2017−2020) |
| Release date | 10 September 2009 (15 years ago) | 7 August 2019 (5 years ago) |
| Launch price (MSRP) | no data | $1,783 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon II M340 and EPYC 7402 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) | 24 (Tetracosa-Core) |
| Threads | 2 | 48 |
| Base clock speed | no data | 2.8 GHz |
| Boost clock speed | 2.2 GHz | 3.35 GHz |
| Bus rate | 3200 MHz | no data |
| Multiplier | no data | 28 |
| L1 cache | 128 KB | 96K (per core) |
| L2 cache | 1 MB | 512K (per core) |
| L3 cache | no data | 128 MB (shared) |
| Chip lithography | 45 nm | 7 nm, 14 nm |
| Die size | no data | 192 mm2 |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Athlon II M340 and EPYC 7402 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 | no data | 2 (Multiprocessor) |
| Socket | Socket S1 (S1g3) | TR4 |
| Power consumption (TDP) | 35 Watt | 180 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II M340 and EPYC 7402. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, Enhanced 3DNow!, NX bit, AMD64, PowerNow!, AMD Virtualization | no data |
| AES-NI | - | + |
| AVX | - | + |
| PowerNow | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II M340 and EPYC 7402 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II M340 and EPYC 7402. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR4 Eight-channel |
| Maximum memory size | no data | 4 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 204.763 GB/s |
| ECC memory support | - | + |
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 | 0.51 | 28.97 |
| Recency | 10 September 2009 | 7 August 2019 |
| Physical cores | 2 | 24 |
| Threads | 2 | 48 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 35 Watt | 180 Watt |
Athlon II M340 has 414.3% lower power consumption.
EPYC 7402, on the other hand, has a 5580.4% higher aggregate performance score, an age advantage of 9 years, 1100% more physical cores and 2300% more threads, and a 542.9% more advanced lithography process.
The EPYC 7402 is our recommended choice as it beats the Athlon II M340 in performance tests.
Be aware that Athlon II M340 is a notebook processor while EPYC 7402 is a server/workstation one.
Should you still have questions on choice between Athlon II M340 and EPYC 7402, ask them in Comments section, and we shall answer.
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