Ryzen 7 H 255 vs Ryzen 7 7745HX
Aggregate performance score
Ryzen 7 7745HX outperforms Ryzen 7 H 255 by a moderate 18% 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 | 377 | 493 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Power efficiency | 35.93 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | no data |
| Architecture codename | Dragon Range (Zen 4) (2023) | Hawk Point-H (Zen 4) |
| Release date | 4 January 2023 (2 years ago) | no data |
Detailed specifications
Ryzen 7 7745HX and Ryzen 7 H 255 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 | 8 (Octa-Core) | 8 (Octa-Core) |
| Threads | 16 | 16 |
| Base clock speed | 3.6 GHz | 3.8 GHz |
| Boost clock speed | 5.1 GHz | 4.9 GHz |
| L1 cache | 64K (per core) | no data |
| L2 cache | 1 MB (per core) | no data |
| L3 cache | 32 MB (shared) | no data |
| Chip lithography | CCD = 5 nm, I/O = 6 nm | no data |
| Die size | 71 mm2 | no data |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 6,570 million | no data |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 7 7745HX and Ryzen 7 H 255 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 | no data |
| Socket | FL1 | no data |
| Power consumption (TDP) | 55 Watt | 8 MB + 16 MB |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 7745HX and Ryzen 7 H 255. 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, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 7745HX and Ryzen 7 H 255 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7745HX and Ryzen 7 H 255. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M (400 - 2200 MHz) | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 7745HX and Ryzen 7 H 255.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 28 | no data |
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.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Pros & cons summary
| Performance score | 18.43 | 15.67 |
| Power consumption (TDP) | 55 Watt | 8 Watt |
Ryzen 7 7745HX has a 17.6% higher aggregate performance score.
Ryzen 7 H 255, on the other hand, has 587.5% lower power consumption.
The AMD Ryzen 7 7745HX is our recommended choice as it beats the AMD Ryzen 7 H 255 in performance tests.
Other comparisons
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