Xeon 6543P-B vs Opteron X2 265
Contents
Primary details
Comparing 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 |
| Manufacturer | no data | Intel |
| Architecture codename | Italy (2005−2006) | Granite Rapids (2024−2025) |
| Release date | May 2005 (20 years ago) | 24 February 2025 (less than a year ago) |
| Launch price (MSRP) | no data | $2,206 |
Detailed specifications
Opteron X2 265 and Xeon 6543P-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 | 2 (Dual-core) | 32 (Dotriaconta-Core) |
| Performance-cores | no data | 32 |
| Threads | 2 | 64 |
| Base clock speed | no data | 2 GHz |
| Boost clock speed | 1.8 GHz | 3.3 GHz |
| L1 cache | 128 KB | 112 KB (per core) |
| L2 cache | 1 MB | 2 MB (per core) |
| L3 cache | 0 KB | 128 MB (shared) |
| Chip lithography | 90 nm | Intel 3 nm |
| Die size | no data | 598 mm2 |
| Maximum case temperature (TCase) | no data | 85 °C |
| Number of transistors | 233 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Opteron X2 265 and Xeon 6543P-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 | 940 | FCBGA4368 |
| Power consumption (TDP) | 95 Watt | 160 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron X2 265 and Xeon 6543P-B. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | no data | - |
| QuickAssist | no data | + |
| Speed Shift | no data | - |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
Opteron X2 265 and Xeon 6543P-B technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
Virtualization technologies
Virtual machine speed-up technologies supported by Opteron X2 265 and Xeon 6543P-B are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron X2 265 and Xeon 6543P-B. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
| Maximum memory size | no data | 1.13 TB |
| Max memory channels | no data | 4 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Opteron X2 265 and Xeon 6543P-B.
| PCIe version | no data | Gen 4, Gen 5 |
| PCI Express lanes | no data | 48 |
| Integrated LAN | no data | + |
Pros & cons summary
| Physical cores | 2 | 32 |
| Threads | 2 | 64 |
| Power consumption (TDP) | 95 Watt | 160 Watt |
Opteron X2 265 has 68.4% lower power consumption.
Xeon 6543P-B, on the other hand, has 1500% more physical cores and 3100% more threads.
We couldn't decide between AMD Opteron X2 265 and Intel Xeon 6543P-B. We've got no test results to judge.
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