AMD Opteron 840: specs and benchmarks
Summary
AMD started Opteron 840 sales on September 2003. This is a SledgeHammer architecture desktop processor primarily aimed at professional systems. It has 1 core and 1 thread, and is based on 130 nm manufacturing technology, with a maximum frequency of 1400 MHz and a locked multiplier.
Compatibility-wise, this is AMD Socket 940 processor with a TDP of 85 Watt.
Primary details
Opteron 840 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | not rated | |
| Place by popularity | not in top-100 | |
| Market segment | Server | |
| Architecture codename | SledgeHammer (2003−2005) | |
| Release date | September 2003 (21 year ago) |
Detailed specifications
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 1 (Single-Core) | |
| Threads | 1 | |
| Boost clock speed | 1.4 GHz | of 6.2 GHz (Core i9-14900KS) |
| L1 cache | 128 KB | of 80 KB (EPYC 9965) |
| L2 cache | 1 MB | of 2 MB (Xeon 6980P) |
| L3 cache | 0 KB | of 1152 MB (EPYC 9684X) |
| Chip lithography | 130 nm | of 3 nm (Apple M3 Max 16-Core) |
| Die size | 193 mm2 | |
| Number of transistors | 106 million | of 135,240 million (EPYC 9684X) |
| 64 bit support | + | |
| Windows 11 compatibility | - |
Compatibility
Information on Opteron 840 compatibility with other computer components and devices: 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 | of 8 (Opteron 842) |
| Socket | 940 | |
| Power consumption (TDP) | 85 Watt | of 3100 ‑ 4500 (Ryzen 7 7435H) |
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
