Phenom II X4 945 (95W) vs Athlon 64 X2 3800+
General info
Comparing Athlon 64 X2 3800+ and Phenom II X4 945 (95W) processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Architecture codename | Manchester (2005−2006) | Deneb (2009−2011) |
| Release date | August 2005 (18 years ago) | July 2009 (14 years ago) |
| Current price | $86 | $33 |
Technical specs
Athlon 64 X2 3800+ and Phenom II X4 945 (95W) 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) | 4 (Quad-Core) |
| Threads | 2 | 4 |
| Boost clock speed | 2 GHz | 3 GHz |
| L1 cache | 256K | 128 KB (per core) |
| L2 cache | 512 KB | 512 KB (per core) |
| L3 cache | 0 KB | 6 MB (shared) |
| Chip lithography | 90 nm | 45 nm |
| Die size | 220 mm2 | 258 mm2 |
| Number of transistors | 154 million | 758 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | No | No |
Compatibility
Information on Athlon 64 X2 3800+ and Phenom II X4 945 (95W) 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 | 1 |
| Socket | 939 | AM3 |
| Power consumption (TDP) | 89 Watt | 95 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon 64 X2 3800+ and Phenom II X4 945 (95W). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3 |
Advantages and disadvantages
| Physical cores | 2 | 4 |
| Threads | 2 | 4 |
| Chip lithography | 90 nm | 45 nm |
| Power consumption (TDP) | 89 Watt | 95 Watt |
We couldn't decide between Athlon 64 X2 3800+ and Phenom II X4 945 (95W). We've got no test results to judge.
Should you still have questions on choice between Athlon 64 X2 3800+ and Phenom II X4 945 (95W), ask them in Comments section, and we shall answer.
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