Phenom II X2 B55: specs and benchmarks
Aggregated performance score
It provides poor benchmark performance at 0.77% of a leader's which is AMD Ryzen Threadripper PRO 7995WX.
Summary
AMD started Phenom II X2 B55 sales on October 2009 at a recommended price of $48. This is a Callisto architecture desktop processor primarily aimed at office systems. It has 2 cores and 2 threads, and is based on 45 nm manufacturing technology, with a maximum frequency of 3000 MHz and a locked multiplier.
Compatibility-wise, this is AMD Socket AM3 processor with a TDP of 80 Watt. It supports DDR3 memory.
General info
Phenom II X2 B55 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in performance ranking | 2508 | |
| Place by popularity | not in top-100 | |
| Value for money | 2.02 | |
| Market segment | Desktop processor | |
| Architecture codename | Callisto (2009−2010) | |
| Release date | October 2009 (14 years old) | |
| Launch price (MSRP) | $48 | of 305 (Core i7-870) |
| Current price | $23 (0.5x MSRP) | of 17802 (Ryzen Threadripper PRO 7995WX) |
Value for money
Performance per price, higher is better.
Technical specs
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 2 (Dual-core) | |
| Threads | 2 | |
| Boost clock speed | 3 GHz | of 6.2 (Core i9-14900KS) |
| L1 cache | 128 KB (per core) | of 7475.2 (Apple M2 Pro 10-Core) |
| L2 cache | 512 KB (per core) | of 98304 (Ryzen Threadripper PRO 7995WX) |
| L3 cache | 6 MB (shared) | of 768 (EPYC 7773X) |
| Chip lithography | 45 nm | of 3 (Apple M3 Max 16-Core) |
| Die size | 258 mm2 | |
| Number of transistors | 758 million | of 9900000 (Ryzen 5 7645HX) |
| 64 bit support | + | |
| Windows 11 compatibility | - | |
| Unlocked multiplier | No |
Compatibility
Information on Phenom II X2 B55 compatibility with other computer components and devices: 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 | of 8 (Xeon Platinum 8160M) |
| Socket | AM3 | |
| Power consumption (TDP) | 80 Watt | of 400 (Xeon Platinum 9282) |
Memory specs
Types, maximum amount and channel number of RAM supported by Phenom II X2 B55's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR3 |
Benchmark performance
Single-core and multi-core benchmark results of Phenom II X2 B55. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Benchmark coverage: 68%
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Send your test results of Phenom II X2 B55.
Intel equivalent
According to our data, the closest Intel alternative to Phenom II X2 B55 is Celeron G540, which is slower by 1% and lower by 7 positions in our ranking.
Here are some closest Intel rivals to Phenom II X2 B55:
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for Phenom II X2 B55, according to our PC configuration statistics.
These are the fastest graphics cards for Phenom II X2 B55 in our user configuration statistics. There is a total of 215 configurations based on Phenom II X2 B55 in our database.
