Opteron 844 vs Opteron 840
Primary details
Comparing Opteron 840 and Opteron 844 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 |
| Architecture codename | SledgeHammer (2003−2005) | SledgeHammer (2003−2005) |
| Release date | September 2003 (21 year ago) | June 2003 (21 year ago) |
Detailed specifications
Opteron 840 and Opteron 844 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) | 1 (Single-Core) |
| Threads | 1 | 1 |
| Boost clock speed | 1.4 GHz | 1.8 GHz |
| L1 cache | 128 KB | 128 KB |
| L2 cache | 1 MB | 1 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 130 nm | 130 nm |
| Die size | 193 mm2 | 193 mm2 |
| Number of transistors | 106 million | 106 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Opteron 840 and Opteron 844 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 | 8 |
| Socket | 940 | 940 |
| Power consumption (TDP) | 85 Watt | 85 Watt |
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