Xeon Gold 6438Y+ vs Ryzen 9 9955HX
Aggregate performance score
Xeon Gold 6438Y+ outperforms Ryzen 9 9955HX by a moderate 13% 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 | 161 | 112 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 11.26 |
| Market segment | Laptop | Server |
| Series | AMD Dragon Range (Zen 4, Ryzen 7045) | no data |
| Power efficiency | 24.30 | 7.36 |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Fire Range-HX (Zen 5) (2025) | Sapphire Rapids (2023−2024) |
| Release date | 6 January 2025 (less than a year ago) | 10 January 2023 (2 years ago) |
| Launch price (MSRP) | no data | $3,141 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Ryzen 9 9955HX and Xeon Gold 6438Y+ 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) | 32 (Dotriaconta-Core) |
| Threads | 32 | 64 |
| Base clock speed | no data | 2 GHz |
| Boost clock speed | 5.4 GHz | 4 GHz |
| L1 cache | 1.3 MB | 80K (per core) |
| L2 cache | 16 MB | 2 MB (per core) |
| L3 cache | 64 MB | 60 MB |
| Chip lithography | no data | 10 nm |
| Maximum case temperature (TCase) | no data | 85 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | + |
Compatibility
Information on Ryzen 9 9955HX and Xeon Gold 6438Y+ 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 | no data | 2 |
| Socket | no data | 4677 |
| Power consumption (TDP) | 55 Watt | 205 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 9955HX and Xeon Gold 6438Y+. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| TSX | - | + |
Security technologies
Ryzen 9 9955HX and Xeon Gold 6438Y+ technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 9955HX and Xeon Gold 6438Y+ are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 9955HX and Xeon Gold 6438Y+. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5-4800 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 610M ( - 2200 MHz) | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 9955HX and Xeon Gold 6438Y+.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 80 |
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.
Pros & cons summary
| Performance score | 31.46 | 35.53 |
| Recency | 6 January 2025 | 10 January 2023 |
| Physical cores | 16 | 32 |
| Threads | 32 | 64 |
| Power consumption (TDP) | 55 Watt | 205 Watt |
Ryzen 9 9955HX has an age advantage of 1 year, and 272.7% lower power consumption.
Xeon Gold 6438Y+, on the other hand, has a 12.9% higher aggregate performance score, and 100% more physical cores and 100% more threads.
The Intel Xeon Gold 6438Y+ is our recommended choice as it beats the AMD Ryzen 9 9955HX in performance tests.
Be aware that Ryzen 9 9955HX is a notebook processor while Xeon Gold 6438Y+ is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
