EPYC 7453 vs Opteron 840
Primary details
Comparing Opteron 840 and EPYC 7453 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 128 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 16.21 |
| Market segment | Server | Server |
| Series | no data | AMD EPYC |
| Power efficiency | no data | 13.39 |
| Architecture codename | SledgeHammer (2003−2005) | Milan (2021−2023) |
| Release date | September 2003 (21 year ago) | 12 January 2021 (3 years ago) |
| Launch price (MSRP) | no data | $1,570 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Opteron 840 and EPYC 7453 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 | 1 (Single-Core) | 28 (Octacosa-Core) |
| Threads | 1 | 56 |
| Base clock speed | no data | 2.75 GHz |
| Boost clock speed | 1.4 GHz | 3.45 GHz |
| Multiplier | no data | 27.5 |
| L1 cache | 128 KB | 1792 KB |
| L2 cache | 1 MB | 14 MB |
| L3 cache | 0 KB | 64 MB (shared) |
| Chip lithography | 130 nm | 7 nm+ |
| Die size | 193 mm2 | 4x 81 mm2 |
| Number of transistors | 106 million | 16,600 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Opteron 840 and EPYC 7453 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 | 940 | SP3 |
| Power consumption (TDP) | 85 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron 840 and EPYC 7453. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Opteron 840 and EPYC 7453 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron 840 and EPYC 7453. 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 Opteron 840 and EPYC 7453.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Physical cores | 1 | 28 |
| Threads | 1 | 56 |
| Chip lithography | 130 nm | 7 nm |
| Power consumption (TDP) | 85 Watt | 225 Watt |
Opteron 840 has 164.7% lower power consumption.
EPYC 7453, on the other hand, has 2700% more physical cores and 5500% more threads, and a 1757.1% more advanced lithography process.
We couldn't decide between Opteron 840 and EPYC 7453. We've got no test results to judge.
Should you still have questions on choice between Opteron 840 and EPYC 7453, ask them in Comments section, and we shall answer.
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