EPYC 7643 vs Ryzen 5 3400G
Aggregate performance score
EPYC 7643 outperforms Ryzen 5 3400G by a whopping 721% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 5 3400G and EPYC 7643 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1090 | 38 |
| Place by popularity | 66 | not in top-100 |
| Cost-effectiveness evaluation | no data | 6.59 |
| Market segment | Desktop processor | Server |
| Series | AMD Ryzen 5 | AMD EPYC |
| Architecture codename | Picasso (2019−2022) | Milan (2021−2023) |
| Release date | 7 July 2019 (5 years ago) | 15 March 2021 (3 years ago) |
| Launch price (MSRP) | no data | $4,995 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 5 3400G and EPYC 7643 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) | 48 (Octatetraconta-Core) |
| Threads | 8 | 96 |
| Base clock speed | 3.7 GHz | 2.3 GHz |
| Boost clock speed | 4.2 GHz | 3.6 GHz |
| Bus type | PCIe 3.0 | no data |
| Multiplier | 37 | 23 |
| L1 cache | 128K (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 512 KB (per core) |
| L3 cache | 4 MB (shared) | 256 MB (shared) |
| Chip lithography | 12 nm | 7 nm+ |
| Die size | 210 mm2 | 8x 81 mm2 |
| Number of transistors | 4,950 million | 33,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Ryzen 5 3400G and EPYC 7643 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 (Uniprocessor) | 2 |
| Socket | AM4 | SP3 |
| Power consumption (TDP) | 65 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 5 3400G and EPYC 7643. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 5 3400G and EPYC 7643 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 5 3400G and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2933 | DDR4-3200 |
| Maximum memory size | 64 GB | 4 TiB |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 46.933 GB/s | 204.795 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 11 | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 5 3400G and EPYC 7643.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 20 | 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.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Pros & cons summary
| Performance score | 6.02 | 49.40 |
| Recency | 7 July 2019 | 15 March 2021 |
| Physical cores | 4 | 48 |
| Threads | 8 | 96 |
| Chip lithography | 12 nm | 7 nm |
| Power consumption (TDP) | 65 Watt | 225 Watt |
Ryzen 5 3400G has 246.2% lower power consumption.
EPYC 7643, on the other hand, has a 720.6% higher aggregate performance score, an age advantage of 1 year, 1100% more physical cores and 1100% more threads, and a 71.4% more advanced lithography process.
The EPYC 7643 is our recommended choice as it beats the Ryzen 5 3400G in performance tests.
Note that Ryzen 5 3400G is a desktop processor while EPYC 7643 is a server/workstation one.
Should you still have questions on choice between Ryzen 5 3400G and EPYC 7643, ask them in Comments section, and we shall answer.
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