EPYC 9655 vs A6 PRO-7400B
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2529 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 1.50 | no data |
| Designer | AMD | AMD |
| Manufacturer | GlobalFoundries | TSMC |
| Architecture codename | Kaveri (2014−2015) | Turin (2024) |
| Release date | 31 July 2014 (10 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $11,852 |
Detailed specifications
A6 PRO-7400B and EPYC 9655 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) | 96 |
| Threads | 2 | 192 |
| Base clock speed | 3.5 GHz | 2.6 GHz |
| Boost clock speed | 3.9 GHz | 4.5 GHz |
| L1 cache | no data | 80 KB (per core) |
| L2 cache | 1024 KB | 1 MB (per core) |
| L3 cache | no data | 384 MB (shared) |
| Chip lithography | 28 nm | 4 nm |
| Die size | 245 mm2 | 12x 70.6 mm2 |
| Maximum core temperature | 70 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | 2,411 million | 99,780 million |
| 64 bit support | + | + |
Compatibility
Information on A6 PRO-7400B and EPYC 9655 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 | FM2+ | SP5 |
| Power consumption (TDP) | 65 Watt | 400 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A6 PRO-7400B and EPYC 9655. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| PowerTune | + | - |
| DualGraphics | + | - |
| TrueAudio | + | - |
| PowerNow | + | - |
| PowerGating | + | - |
| Out-of-band client management | + | - |
| VirusProtect | + | - |
| RAID | + | - |
| HSA | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A6 PRO-7400B and EPYC 9655 are enumerated here.
| AMD-V | + | + |
| IOMMU 2.0 | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A6 PRO-7400B and EPYC 9655. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR5 |
| Max memory channels | 2 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon R5 Graphics | N/A |
| iGPU core count | 4 | no data |
| จำนวนพาธไลน์ | 256 | no data |
| UVD | + | - |
| VCE | + | - |
Graphics interfaces
Available interfaces and connections of A6 PRO-7400B and EPYC 9655 integrated GPUs.
| DisplayPort | + | - |
| HDMI | + | - |
Graphics API support
APIs supported by A6 PRO-7400B and EPYC 9655 integrated GPUs, sometimes API versions are included.
| DirectX | DirectX® 12 | no data |
Peripherals
Specifications and connection of peripherals supported by A6 PRO-7400B and EPYC 9655.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 16 | 128 |
Pros & cons summary
| Recency | 31 July 2014 | 10 October 2024 |
| Physical cores | 2 | 96 |
| Threads | 2 | 192 |
| Chip lithography | 28 nm | 4 nm |
| Power consumption (TDP) | 65 Watt | 400 Watt |
A6 PRO-7400B has 515.4% lower power consumption.
EPYC 9655, on the other hand, has an age advantage of 10 years, 4700% more physical cores and 9500% more threads, and a 600% more advanced lithography process.
We couldn't decide between AMD A6 PRO-7400B and AMD EPYC 9655. We've got no test results to judge.
Note that A6 PRO-7400B is a desktop processor while EPYC 9655 is a server/workstation one.
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