Opteron 846 vs Athlon 64 X2 6400+ BE
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 | Desktop processor | Server |
| Designer | AMD | AMD |
| Architecture codename | Windsor (2006−2007) | Athens (2003−2006) |
| Release date | August 2007 (18 years ago) | September 2003 (22 years ago) |
Detailed specifications
Athlon 64 X2 6400+ BE and Opteron 846 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) | 1 (Single-Core) |
| Threads | 2 | 1 |
| Boost clock speed | 3.2 GHz | 2 GHz |
| L1 cache | 256 KB | 128 KB |
| L2 cache | 1 MB | 1 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 90 nm | 130 nm |
| Die size | 230 mm2 | 193 mm2 |
| Number of transistors | 227 million | 106 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Athlon 64 X2 6400+ BE and Opteron 846 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 | AM2 | 940 |
| Power consumption (TDP) | 125 Watt | 89 Watt |
Pros & cons summary
| Physical cores | 2 | 1 |
| Threads | 2 | 1 |
| Chip lithography | 90 nm | 130 nm |
| Power consumption (TDP) | 125 Watt | 89 Watt |
Athlon 64 X2 6400+ BE has 100% more physical cores and 100% more threads, and a 44.4% more advanced lithography process.
Opteron 846, on the other hand, has 40.4% lower power consumption.
We couldn't decide between AMD Athlon 64 X2 6400+ BE and AMD Opteron 846. We've got no test results to judge.
Note that Athlon 64 X2 6400+ BE is a desktop processor while Opteron 846 is a server/workstation one.
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