EPYC 7303 vs Ryzen 9 7945HX
Aggregate performance score
Ryzen 9 7945HX outperforms EPYC 7303 by an impressive 91% based on our aggregate benchmark results.
Primary details
Comparing Ryzen 9 7945HX and EPYC 7303 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 111 | 342 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 22.37 |
| Market segment | Laptop | Server |
| Power efficiency | 59.23 | 13.10 |
| Architecture codename | Dragon Range-HX (Zen 4) (2023−2024) | Milan (2021−2023) |
| Release date | 4 January 2023 (1 year ago) | 5 September 2023 (1 year ago) |
| Launch price (MSRP) | no data | $604 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Ryzen 9 7945HX and EPYC 7303 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 | 16 (Hexadeca-Core) | 16 (Hexadeca-Core) |
| Threads | 32 | 32 |
| Base clock speed | 2.5 GHz | 2.4 GHz |
| Boost clock speed | 5.4 GHz | 3.4 GHz |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 64 MB (shared) | 64 MB (shared) |
| Chip lithography | CCD = 5 nm, I/O = 6 nm | 7 nm |
| Die size | 2x 71 mm2 | 2x 81 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 13,140 million | 8,300 million |
| 64 bit support | + | - |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen 9 7945HX and EPYC 7303 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 | 2 |
| Socket | FL1 | SP3 |
| Power consumption (TDP) | 55 Watt | 130 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7945HX and EPYC 7303. 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 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7945HX and EPYC 7303 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7945HX and EPYC 7303. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M (400 - 2200 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7945HX and EPYC 7303.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 28 | 128 |
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 | 34.42 | 17.99 |
| Recency | 4 January 2023 | 5 September 2023 |
| Power consumption (TDP) | 55 Watt | 130 Watt |
Ryzen 9 7945HX has a 91.3% higher aggregate performance score, and 136.4% lower power consumption.
EPYC 7303, on the other hand, has an age advantage of 8 months.
The Ryzen 9 7945HX is our recommended choice as it beats the EPYC 7303 in performance tests.
Be aware that Ryzen 9 7945HX is a notebook processor while EPYC 7303 is a server/workstation one.
Should you still have questions on choice between Ryzen 9 7945HX and EPYC 7303, ask them in Comments section, and we shall answer.
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