Athlon X4 950 vs Ryzen 5 4500U
Aggregate performance score
Ryzen 5 4500U outperforms Athlon X4 950 by a whopping 204% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 5 4500U and Athlon X4 950 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1025 | 1828 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 3.66 |
| Market segment | Laptop | Desktop processor |
| Series | AMD Renoir (Ryzen 4000 APU) | no data |
| Power efficiency | 43.25 | 3.29 |
| Architecture codename | Renoir-U (Zen 2) (2020−2021) | Bristol Ridge (2016−2019) |
| Release date | 6 January 2020 (4 years ago) | 27 July 2017 (7 years ago) |
| Launch price (MSRP) | no data | $60 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 5 4500U and Athlon X4 950 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 | 6 (Hexa-Core) | 4 (Quad-Core) |
| Threads | 6 | 4 |
| Base clock speed | 2.3 GHz | 3.5 GHz |
| Boost clock speed | 4 GHz | 3.8 GHz |
| Multiplier | 23 | no data |
| L1 cache | 64 KB (per core) | 128 KB (per core) |
| L2 cache | 512 KB (per core) | 512 KB (per core) |
| L3 cache | 8 MB (shared) | 0 KB |
| Chip lithography | 7 nm | 28 nm |
| Die size | 156 mm2 | 246 mm2 |
| Maximum core temperature | 105 °C | no data |
| Maximum case temperature (TCase) | no data | 74 °C |
| Number of transistors | 9,800 million | 1,178 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 5 4500U and Athlon X4 950 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 | FP6 | AM4 |
| Power consumption (TDP) | 15 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 5 4500U and Athlon X4 950. 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, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | + |
| FMA | + | + |
| AVX | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 5 4500U and Athlon X4 950 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 5 4500U and Athlon X4 950. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 Dual-channel |
| Maximum memory size | 64 GB | no data |
| Maximum memory bandwidth | 68.27 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon RX Vega 6 (Ryzen 4000/5000) ( - 1500 MHz) | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 5 4500U and Athlon X4 950.
| PCIe version | 3.0 | no data |
| PCI Express lanes | 12 | 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.
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 | 6.86 | 2.26 |
| Recency | 6 January 2020 | 27 July 2017 |
| Physical cores | 6 | 4 |
| Threads | 6 | 4 |
| Chip lithography | 7 nm | 28 nm |
| Power consumption (TDP) | 15 Watt | 65 Watt |
Ryzen 5 4500U has a 203.5% higher aggregate performance score, an age advantage of 2 years, 50% more physical cores and 50% more threads, a 300% more advanced lithography process, and 333.3% lower power consumption.
The Ryzen 5 4500U is our recommended choice as it beats the Athlon X4 950 in performance tests.
Be aware that Ryzen 5 4500U is a notebook processor while Athlon X4 950 is a desktop one.
Should you still have questions on choice between Ryzen 5 4500U and Athlon X4 950, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
