Athlon 64 2800+ vs Phenom II X4 840
Primary details
Comparing Phenom II X4 840 and Athlon 64 2800+ processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2128 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.08 | no data |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 1.51 | no data |
| Architecture codename | Propus (2009−2011) | NewCastle (2004) |
| Release date | 4 January 2011 (13 years ago) | April 2004 (20 years ago) |
| Launch price (MSRP) | $90 | $100 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Phenom II X4 840 and Athlon 64 2800+ 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) | 1 (Single-Core) |
| Threads | 4 | 1 |
| Base clock speed | 3.2 GHz | no data |
| Boost clock speed | 3.2 GHz | 1.8 GHz |
| L1 cache | 128 KB (per core) | 128 KB |
| L2 cache | 512 KB (per core) | 512 KB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 45 nm | 130 nm |
| Die size | 169 mm2 | 193 mm2 |
| Number of transistors | 300 million | 69 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Phenom II X4 840 and Athlon 64 2800+ 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 | AM3 | 754 |
| Power consumption (TDP) | 95 Watt | 89 Watt |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X4 840 and Athlon 64 2800+. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
Peripherals
Specifications and connection of peripherals supported by Phenom II X4 840 and Athlon 64 2800+.
| PCIe version | 2.0 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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.
Pros & cons summary
| Physical cores | 4 | 1 |
| Threads | 4 | 1 |
| Chip lithography | 45 nm | 130 nm |
| Power consumption (TDP) | 95 Watt | 89 Watt |
Phenom II X4 840 has 300% more physical cores and 300% more threads, and a 188.9% more advanced lithography process.
Athlon 64 2800+, on the other hand, has 6.7% lower power consumption.
We couldn't decide between Phenom II X4 840 and Athlon 64 2800+. We've got no test results to judge.
Should you still have questions on choice between Phenom II X4 840 and Athlon 64 2800+, ask them in Comments section, and we shall answer.
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