A8-3870K vs Phenom X3 8450
Aggregate performance score
A8-3870K outperforms Phenom X3 8450 by an impressive 94% 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 | 2904 | 2411 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 0.31 | 0.57 |
| Designer | AMD | AMD |
| Architecture codename | Toliman (2008) | Llano (2011−2012) |
| Release date | April 2008 (17 years ago) | 20 December 2011 (13 years ago) |
Detailed specifications
Phenom X3 8450 and A8-3870K 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 |
| Base clock speed | no data | 3 GHz |
| Boost clock speed | 2.1 GHz | 3 GHz |
| L1 cache | 128 KB (per core) | 128 KB (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 2 MB (shared) | 0 KB |
| Chip lithography | 65 nm | 32 nm |
| Die size | 285 mm2 | 228 mm2 |
| Number of transistors | 450 million | 1,178 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Phenom X3 8450 and A8-3870K 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 | AM2+ | FM1 |
| Power consumption (TDP) | 95 Watt | 100 Watt |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom X3 8450 and A8-3870K are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom X3 8450 and A8-3870K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon HD 6550D |
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 | 0.69 | 1.34 |
| Physical cores | 3 | 4 |
| Threads | 3 | 4 |
| Chip lithography | 65 nm | 32 nm |
| Power consumption (TDP) | 95 Watt | 100 Watt |
Phenom X3 8450 has 5.3% lower power consumption.
A8-3870K, on the other hand, has a 94.2% higher aggregate performance score, 33.3% more physical cores and 33.3% more threads, and a 103.1% more advanced lithography process.
The AMD A8-3870K is our recommended choice as it beats the AMD Phenom X3 8450 in performance tests.
Other comparisons
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