i9-13950HX vs Athlon II X4 645
Aggregate performance score
Core i9-13950HX outperforms Athlon II X4 645 by a whopping 1745% based on our aggregate benchmark results.
Primary details
Comparing Athlon II X4 645 and Core i9-13950HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2167 | 179 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.30 | no data |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Raptor Lake-HX |
| Power efficiency | 1.47 | 46.96 |
| Architecture codename | Propus (2009−2011) | Raptor Lake-HX (2023) |
| Release date | 21 September 2010 (14 years ago) | 4 January 2023 (1 year ago) |
| Launch price (MSRP) | $80 | $590 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Athlon II X4 645 and Core i9-13950HX 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) | 24 (Tetracosa-Core) |
| Performance-cores | no data | 8 |
| Efficient-cores | no data | 16 |
| Threads | 4 | 32 |
| Base clock speed | 3.1 GHz | 2.2 GHz |
| Boost clock speed | 3.1 GHz | 5.5 GHz |
| L1 cache | 128 KB (per core) | 80K (per core) |
| L2 cache | 512 KB (per core) | 2 MB (per core) |
| L3 cache | 0 KB | 36 MB (shared) |
| Chip lithography | 45 nm | Intel 7 nm |
| Die size | 169 mm2 | 257 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 300 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Athlon II X4 645 and Core i9-13950HX 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 | FCBGA1964 |
| Power consumption (TDP) | 95 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Athlon II X4 645 and Core i9-13950HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| SIPP | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
Security technologies
Athlon II X4 645 and Core i9-13950HX technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Athlon II X4 645 and Core i9-13950HX are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Athlon II X4 645 and Core i9-13950HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4, DDR5 |
| Maximum memory size | no data | 192 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 89.6 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics for 13th Gen Intel Processors |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.65 GHz |
| Execution Units | no data | 32 |
Graphics interfaces
Available interfaces and connections of Athlon II X4 645 and Core i9-13950HX integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Athlon II X4 645 and Core i9-13950HX integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2160 @ 60Hz |
| Max resolution over eDP | no data | 5120 x 3200 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Athlon II X4 645 and Core i9-13950HX integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.1 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by Athlon II X4 645 and Core i9-13950HX.
| PCIe version | 2.0 | 5.0 and 4.0 |
| PCI Express lanes | no data | 20 |
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 | 1.48 | 27.31 |
| Recency | 21 September 2010 | 4 January 2023 |
| Physical cores | 4 | 24 |
| Threads | 4 | 32 |
| Power consumption (TDP) | 95 Watt | 55 Watt |
i9-13950HX has a 1745.3% higher aggregate performance score, an age advantage of 12 years, 500% more physical cores and 700% more threads, and 72.7% lower power consumption.
The Core i9-13950HX is our recommended choice as it beats the Athlon II X4 645 in performance tests.
Note that Athlon II X4 645 is a desktop processor while Core i9-13950HX is a notebook one.
Should you still have questions on choice between Athlon II X4 645 and Core i9-13950HX, ask them in Comments section, and we shall answer.
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