Xeon 6553P-B vs EPYC 9645
Primary details
Comparing EPYC 9645 and Xeon 6553P-B processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Designer | AMD | Intel |
| Architecture codename | Turin (2024) | Granite Rapids (2024−2025) |
| Release date | 10 October 2024 (less than a year ago) | 24 February 2025 (recently) |
| Launch price (MSRP) | $11,048 | $2,402 |
Detailed specifications
EPYC 9645 and Xeon 6553P-B 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 | 96 | 36 |
| Threads | 192 | 72 |
| Base clock speed | 2.3 GHz | 2.6 GHz |
| Boost clock speed | 3.7 GHz | 4 GHz |
| L1 cache | 80 KB (per core) | 112 KB (per core) |
| L2 cache | 1 MB (per core) | 2 MB (per core) |
| L3 cache | 256 MB (shared) | 144 MB (shared) |
| Chip lithography | 3 nm | 5 nm |
| Die size | no data | 598 mm2 |
| Maximum case temperature (TCase) | no data | 85 °C |
| 64 bit support | + | + |
Compatibility
Information on EPYC 9645 and Xeon 6553P-B 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 | 2 | 1 |
| Socket | SP5 | Intel BGA 4368 |
| Power consumption (TDP) | 320 Watt | 235 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 9645 and Xeon 6553P-B. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| TSX | - | + |
| Precision Boost 2 | + | no data |
Security technologies
EPYC 9645 and Xeon 6553P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 9645 and Xeon 6553P-B are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 9645 and Xeon 6553P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by EPYC 9645 and Xeon 6553P-B.
| PCIe version | 5.0 | 5.0 |
| PCI Express lanes | 128 | 32 |
Pros & cons summary
| Recency | 10 October 2024 | 24 February 2025 |
| Physical cores | 96 | 36 |
| Threads | 192 | 72 |
| Chip lithography | 3 nm | 5 nm |
| Power consumption (TDP) | 320 Watt | 235 Watt |
EPYC 9645 has 166.7% more physical cores and 166.7% more threads, and a 66.7% more advanced lithography process.
Xeon 6553P-B, on the other hand, has an age advantage of 4 months, and 36.2% lower power consumption.
We couldn't decide between AMD EPYC 9645 and Intel Xeon 6553P-B. We've got no test results to judge.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
