Phenom II X4 P940 vs Phenom X3 8400
Primary details
Comparing Phenom X3 8400 and Phenom II X4 P940 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2672 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | 4x AMD Phenom II |
| Power efficiency | 0.73 | no data |
| Architecture codename | Toliman (2008) | Champlain (2010−2011) |
| Release date | March 2008 (16 years ago) | 4 October 2010 (14 years ago) |
Detailed specifications
Phenom X3 8400 and Phenom II X4 P940 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 | 3 (Tri-Core) | 4 (Quad-Core) |
| Threads | 3 | 4 |
| Boost clock speed | 2.1 GHz | 1.7 GHz |
| Bus rate | no data | 3600 MHz |
| L1 cache | 128 KB (per core) | 512 KB |
| L2 cache | 512 KB (per core) | 2 MB |
| L3 cache | 2 MB (shared) | no data |
| Chip lithography | 65 nm | 45 nm |
| Die size | 285 mm2 | no data |
| Number of transistors | 450 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom X3 8400 and Phenom II X4 P940 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 | no data |
| Socket | AM2+ | S1 (S1g4) |
| Power consumption (TDP) | 95 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom X3 8400 and Phenom II X4 P940. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | MMX, 3DNow, SSE (1,2,3,4A), AMD64, Enhanced Virus Protection, Virtualization, HyperTransport 3.0 |
| VirusProtect | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom X3 8400 and Phenom II X4 P940 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom X3 8400 and Phenom II X4 P940. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3 |
Pros & cons summary
| Physical cores | 3 | 4 |
| Threads | 3 | 4 |
| Chip lithography | 65 nm | 45 nm |
| Power consumption (TDP) | 95 Watt | 25 Watt |
Phenom II X4 P940 has 33.3% more physical cores and 33.3% more threads, a 44.4% more advanced lithography process, and 280% lower power consumption.
We couldn't decide between Phenom X3 8400 and Phenom II X4 P940. We've got no test results to judge.
Note that Phenom X3 8400 is a desktop processor while Phenom II X4 P940 is a notebook one.
Should you still have questions on choice between Phenom X3 8400 and Phenom II X4 P940, ask them in Comments section, and we shall answer.
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