EPYC 9455 vs i5-11400
Primary details
Comparing Core i5-11400 and EPYC 9455 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 725 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Power efficiency | 15.58 | no data |
| Architecture codename | Rocket Lake (2021) | Turin (2024) |
| Release date | 16 March 2021 (3 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $5,412 |
Detailed specifications
Core i5-11400 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 | 6 (Hexa-Core) | 48 (Octatetraconta-Core) |
| Threads | 12 | 96 |
| Base clock speed | 2.6 GHz | 3.15 GHz |
| Boost clock speed | 4.4 GHz | 4.4 GHz |
| Bus rate | 8 GT/s | no data |
| L1 cache | 64K (per core) | 80 KB (per core) |
| L2 cache | 256K (per core) | 1 MB (per core) |
| L3 cache | 12 MB (shared) | 192 MB (shared) |
| Chip lithography | 14 nm | 4 nm |
| Die size | no data | 6x 70.6 mm2 |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 49,890 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Core i5-11400 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 | FCLGA1200 | SP5 |
| Power consumption (TDP) | 65 Watt | 300 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i5-11400 and EPYC 9455. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Turbo Boost Max 3.0 | - | no data |
| Precision Boost 2 | no data | + |
| Deep Learning Boost | + | - |
Security technologies
Core i5-11400 and EPYC 9455 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | - | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i5-11400 and EPYC 9455 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i5-11400 and EPYC 9455. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 50 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics 730 | N/A |
| Max video memory | 64 GB | no data |
| Quick Sync Video | + | - |
| Clear Video | + | no data |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.3 GHz | no data |
| Execution Units | 24 | no data |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i5-11400 and EPYC 9455 integrated GPUs.
| Number of displays supported | 3 | no data |
Graphics image quality
Maximum display resolutions supported by Core i5-11400 and EPYC 9455 integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2160@60Hz | no data |
| Max resolution over eDP | 5120 x 3200 @60Hz | no data |
| Max resolution over DisplayPort | 5120 x 3200 @60Hz | no data |
Graphics API support
APIs supported by Core i5-11400 and EPYC 9455 integrated GPUs, sometimes API versions are included.
| DirectX | 12.1 | no data |
| OpenGL | 4.5 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i5-11400 and EPYC 9455.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 20 | 128 |
Pros & cons summary
| Recency | 16 March 2021 | 10 October 2024 |
| Physical cores | 6 | 48 |
| Threads | 12 | 96 |
| Chip lithography | 14 nm | 4 nm |
| Power consumption (TDP) | 65 Watt | 300 Watt |
i5-11400 has 361.5% lower power consumption.
EPYC 9455, on the other hand, has an age advantage of 3 years, 700% more physical cores and 700% more threads, and a 250% more advanced lithography process.
We couldn't decide between Core i5-11400 and EPYC 9455. We've got no test results to judge.
Note that Core i5-11400 is a desktop processor while EPYC 9455 is a server/workstation one.
Should you still have questions on choice between Core i5-11400 and EPYC 9455, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
