Pentium D 955 vs Phenom X4 9850 BE
Primary details
Comparing Phenom X4 9850 BE and Pentium D 955 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 | Agena (2007−2008) | Presler (2005−2007) |
| Release date | March 2008 (16 years ago) | January 2006 (18 years ago) |
Detailed specifications
Phenom X4 9850 BE and Pentium D 955 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 | 4 (Quad-Core) | 2 (Dual-core) |
| Threads | 4 | no data |
| Boost clock speed | 2.5 GHz | 3.46 GHz |
| L1 cache | 128 KB (per core) | 28 KB |
| L2 cache | 512 KB (per core) | 4096 KB |
| L3 cache | 2 MB (shared) | 0 KB |
| Chip lithography | 65 nm | 65 nm |
| Die size | 285 mm2 | 140 mm2 |
| Number of transistors | 450 million | 376 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Phenom X4 9850 BE and Pentium D 955 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 | 2 |
| Socket | AM2+ | 775 |
| Power consumption (TDP) | 125 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom X4 9850 BE and Pentium D 955. You'll probably need this information if you require some particular technology.
| Enhanced SpeedStep (EIST) | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom X4 9850 BE and Pentium D 955 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom X4 9850 BE and Pentium D 955. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR1, DDR2, DDR3 |
Pros & cons summary
| Physical cores | 4 | 2 |
| Power consumption (TDP) | 125 Watt | 130 Watt |
Phenom X4 9850 BE has 100% more physical cores, and 4% lower power consumption.
We couldn't decide between Phenom X4 9850 BE and Pentium D 955. We've got no test results to judge.
Should you still have questions on choice between Phenom X4 9850 BE and Pentium D 955, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
