EPYC 9455 vs Processor U300
Primary details
Comparing Processor U300 and EPYC 9455 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | Intel Raptor Lake-U | no data |
| Architecture codename | Raptor Lake-U (2023) | Turin (2024) |
| Release date | 4 January 2023 (1 year ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | $193 | $5,412 |
Detailed specifications
Processor U300 and EPYC 9455 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 | 5 (Penta-Core) | 48 (Octatetraconta-Core) |
| Threads | 6 | 96 |
| Base clock speed | 1.2 GHz | 3.15 GHz |
| Boost clock speed | 4.4 GHz | 4.4 GHz |
| Bus rate | 55 MHz | no data |
| L1 cache | 80K (per core) | 80 KB (per core) |
| L2 cache | 1.25 MB (per core) | 1 MB (per core) |
| L3 cache | 8 MB (shared) | 192 MB (shared) |
| Chip lithography | 10 nm | 4 nm |
| Die size | no data | 6x 70.6 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 49,890 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Processor U300 and EPYC 9455 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 | Intel BGA 1744 | SP5 |
| Power consumption (TDP) | 15 Watt | 300 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Processor U300 and EPYC 9455. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
| TSX | + | - |
| Precision Boost 2 | no data | + |
Security technologies
Processor U300 and EPYC 9455 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Processor U300 and EPYC 9455 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Processor U300 and EPYC 9455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR5 Dual-channel | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics Xe G4 48EUs ( - 1100 MHz) | N/A |
Peripherals
Specifications and connection of peripherals supported by Processor U300 and EPYC 9455.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 8 | 128 |
Pros & cons summary
| Recency | 4 January 2023 | 10 October 2024 |
| Physical cores | 5 | 48 |
| Threads | 6 | 96 |
| Chip lithography | 10 nm | 4 nm |
| Power consumption (TDP) | 15 Watt | 300 Watt |
Processor U300 has 1900% lower power consumption.
EPYC 9455, on the other hand, has an age advantage of 1 year, 860% more physical cores and 1500% more threads, and a 150% more advanced lithography process.
We couldn't decide between Processor U300 and EPYC 9455. We've got no test results to judge.
Be aware that Processor U300 is a notebook processor while EPYC 9455 is a server/workstation one.
Should you still have questions on choice between Processor U300 and EPYC 9455, ask them in Comments section, and we shall answer.
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