EPYC 7543 vs Xeon E6540
Primary details
Comparing Xeon E6540 and EPYC 7543 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 77 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 7.63 |
| Market segment | Server | Server |
| Series | no data | AMD EPYC |
| Power efficiency | no data | 16.13 |
| Architecture codename | no data | Milan (2021−2023) |
| Release date | 1 January 2010 (14 years ago) | 15 March 2021 (3 years ago) |
| Launch price (MSRP) | no data | $3,761 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon E6540 and EPYC 7543 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 | 6 (Hexa-Core) | 32 (Dotriaconta-Core) |
| Threads | 12 | 64 |
| Base clock speed | 2 GHz | 2.8 GHz |
| Boost clock speed | 2.27 GHz | 3.7 GHz |
| Multiplier | no data | 28 |
| L1 cache | no data | 64 KB (per core) |
| L2 cache | no data | 512 KB (per core) |
| L3 cache | 18 MB L3 Cache | 256 MB (shared) |
| Chip lithography | 45 nm | 7 nm+ |
| Die size | no data | 8x 81 mm2 |
| Number of transistors | no data | 33,200 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Xeon E6540 and EPYC 7543 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 |
| Socket | FCLGA1567 | SP3 |
| Power consumption (TDP) | 105 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E6540 and EPYC 7543. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
Security technologies
Xeon E6540 and EPYC 7543 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E6540 and EPYC 7543 are enumerated here.
| AMD-V | - | + |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E6540 and EPYC 7543. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4-3200 |
| Maximum memory size | no data | 4 TiB |
| Maximum memory bandwidth | no data | 204.795 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon E6540 and EPYC 7543.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 1 January 2010 | 15 March 2021 |
| Physical cores | 6 | 32 |
| Threads | 12 | 64 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 105 Watt | 225 Watt |
Xeon E6540 has 114.3% lower power consumption.
EPYC 7543, on the other hand, has an age advantage of 11 years, 433.3% more physical cores and 433.3% more threads, and a 542.9% more advanced lithography process.
We couldn't decide between Xeon E6540 and EPYC 7543. We've got no test results to judge.
Should you still have questions on choice between Xeon E6540 and EPYC 7543, ask them in Comments section, and we shall answer.
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