Phenom X4 9850B vs Mobile Sempron 2800+
Aggregate performance score
Phenom X4 9850B outperforms Mobile Sempron 2800+ by a whopping 746% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3610 | 2612 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Mobile Sempron | no data |
| Power efficiency | no data | 1.24 |
| Designer | AMD | AMD |
| Architecture codename | Georgetown | Agena (2007−2008) |
| Release date | no data | August 2008 (17 years ago) |
Detailed specifications
Mobile Sempron 2800+ and Phenom X4 9850B 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 | 1 (Single-Core) | 4 (Quad-Core) |
| Threads | 1 | 4 |
| Boost clock speed | 1.6 GHz | 2.5 GHz |
| Bus rate | 800 MHz | no data |
| L1 cache | no data | 128 KB (per core) |
| L2 cache | no data | 512 KB (per core) |
| L3 cache | no data | 2 MB (shared) |
| Chip lithography | no data | 65 nm |
| Die size | no data | 285 mm2 |
| Number of transistors | no data | 450 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Mobile Sempron 2800+ and Phenom X4 9850B 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 | no data | 1 |
| Socket | no data | AM2+ |
| Power consumption (TDP) | 256 KB | 95 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by Mobile Sempron 2800+ and Phenom X4 9850B are enumerated here.
| AMD-V | - | + |
Synthetic benchmarks
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 0.13 | 1.10 |
| Physical cores | 1 | 4 |
| Threads | 1 | 4 |
| Power consumption (TDP) | 256 Watt | 95 Watt |
Phenom X4 9850B has a 746.2% higher aggregate performance score, 300% more physical cores and 300% more threads, and 169.5% lower power consumption.
The AMD Phenom X4 9850B is our recommended choice as it beats the AMD Mobile Sempron 2800+ in performance tests.
Be aware that Mobile Sempron 2800+ is a notebook processor while Phenom X4 9850B is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
