Ryzen 9 7845HX vs Opteron 254
Primary details
Comparing Opteron 254 and Ryzen 9 7845HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 157 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Power efficiency | no data | 49.50 |
| Architecture codename | Troy (2005) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | August 2005 (19 years ago) | 4 January 2023 (1 year ago) |
Detailed specifications
Opteron 254 and Ryzen 9 7845HX 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 | 1 (Single-Core) | 12 (Dodeca-Core) |
| Threads | 1 | 24 |
| Base clock speed | no data | 3 GHz |
| Boost clock speed | 2.8 GHz | 5.2 GHz |
| L1 cache | 128 KB | 64K (per core) |
| L2 cache | 1 MB | 1 MB (per core) |
| L3 cache | 0 KB | 64 MB (shared) |
| Chip lithography | 90 nm | CCD = 5 nm, I/O = 6 nm |
| Die size | no data | 2x 71 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 106 million | 13,140 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Opteron 254 and Ryzen 9 7845HX 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 | 2 | 1 |
| Socket | 940 | FL1 |
| Power consumption (TDP) | 92 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron 254 and Ryzen 9 7845HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 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 |
| AES-NI | - | + |
| FMA | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Opteron 254 and Ryzen 9 7845HX are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron 254 and Ryzen 9 7845HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 610M |
Peripherals
Specifications and connection of peripherals supported by Opteron 254 and Ryzen 9 7845HX.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 28 |
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 | 1 | 12 |
| Threads | 1 | 24 |
| Power consumption (TDP) | 92 Watt | 55 Watt |
Ryzen 9 7845HX has 1100% more physical cores and 2300% more threads, and 67.3% lower power consumption.
We couldn't decide between Opteron 254 and Ryzen 9 7845HX. We've got no test results to judge.
Be aware that Opteron 254 is a server/workstation processor while Ryzen 9 7845HX is a notebook one.
Should you still have questions on choice between Opteron 254 and Ryzen 9 7845HX, ask them in Comments section, and we shall answer.
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