Phenom II X4 840 vs Ryzen 5 3450U
Aggregate performance score
Ryzen 5 3450U outperforms Phenom II X4 840 by a whopping 178% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 5 3450U and Phenom II X4 840 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1368 | 2129 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 3.08 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Picasso (Ryzen 3000 APU) | no data |
| Power efficiency | 26.76 | 1.52 |
| Architecture codename | Picasso-U (Zen+) (2019−2020) | Propus (2009−2011) |
| Release date | 1 May 2020 (4 years ago) | 4 January 2011 (13 years ago) |
| Launch price (MSRP) | no data | $90 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 5 3450U and Phenom II X4 840 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) | 4 (Quad-Core) |
| Threads | 8 | 4 |
| Base clock speed | 2.1 GHz | 3.2 GHz |
| Boost clock speed | 3.5 GHz | 3.2 GHz |
| L1 cache | 384 KB | 128 KB (per core) |
| L2 cache | 2 MB | 512 KB (per core) |
| L3 cache | 4 MB | 0 KB |
| Chip lithography | 12 nm | 45 nm |
| Die size | no data | 169 mm2 |
| Maximum core temperature | 105 °C | no data |
| Number of transistors | 4500 Million | 300 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Ryzen 5 3450U and Phenom II X4 840 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 | FP5 | AM3 |
| Power consumption (TDP) | 15 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 5 3450U and Phenom II X4 840. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 5 3450U and Phenom II X4 840. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 8 (Ryzen 2000/3000) | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 5 3450U and Phenom II X4 840.
| PCIe version | no data | 2.0 |
Synthetic benchmark performance
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. 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.
Pros & cons summary
| Performance score | 4.26 | 1.53 |
| Recency | 1 May 2020 | 4 January 2011 |
| Threads | 8 | 4 |
| Chip lithography | 12 nm | 45 nm |
| Power consumption (TDP) | 15 Watt | 95 Watt |
Ryzen 5 3450U has a 178.4% higher aggregate performance score, an age advantage of 9 years, 100% more threads, a 275% more advanced lithography process, and 533.3% lower power consumption.
The Ryzen 5 3450U is our recommended choice as it beats the Phenom II X4 840 in performance tests.
Be aware that Ryzen 5 3450U is a notebook processor while Phenom II X4 840 is a desktop one.
Should you still have questions on choice between Ryzen 5 3450U and Phenom II X4 840, ask them in Comments section, and we shall answer.
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