Ultra 9 275HX vs EPYC 7453
Aggregate performance score
Core Ultra 9 275HX outperforms EPYC 7453 by a significant 21% based on our aggregate benchmark results.
Primary details
Comparing EPYC 7453 and Core Ultra 9 275HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 137 | 82 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 17.07 | no data |
| Market segment | Server | Laptop |
| Series | AMD EPYC | no data |
| Power efficiency | 13.36 | 65.94 |
| Architecture codename | Milan (2021−2023) | no data |
| Release date | 12 January 2021 (4 years ago) | 1 January 2025 (less than a year ago) |
| Launch price (MSRP) | $1,570 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC 7453 and Core Ultra 9 275HX 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 | 28 (Octacosa-Core) | 24 (Tetracosa-Core) |
| Performance-cores | no data | 8 |
| Efficient-cores | no data | 16 |
| Threads | 56 | 24 |
| Base clock speed | 2.75 GHz | no data |
| Boost clock speed | 3.45 GHz | 5.4 GHz |
| Multiplier | 27.5 | no data |
| L1 cache | 1792 KB | no data |
| L2 cache | 14 MB | no data |
| L3 cache | 64 MB (shared) | 36 MB |
| Chip lithography | 7 nm+ | no data |
| Die size | 4x 81 mm2 | no data |
| Number of transistors | 16,600 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on EPYC 7453 and Core Ultra 9 275HX 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 | no data |
| Socket | SP3 | FCBGA2114 |
| Power consumption (TDP) | 225 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7453 and Core Ultra 9 275HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN |
Security technologies
EPYC 7453 and Core Ultra 9 275HX technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7453 and Core Ultra 9 275HX 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 EPYC 7453 and Core Ultra 9 275HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR5-6400 |
| Maximum memory size | 4 TiB | 192 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | 204.795 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.9 GHz |
Graphics interfaces
Available interfaces and connections of EPYC 7453 and Core Ultra 9 275HX integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by EPYC 7453 and Core Ultra 9 275HX integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | no data | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by EPYC 7453 and Core Ultra 9 275HX integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by EPYC 7453 and Core Ultra 9 275HX.
| PCIe version | 4.0 | 5.0 and 4.0 |
| PCI Express lanes | 128 | 24 |
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.
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 | 31.57 | 38.08 |
| Recency | 12 January 2021 | 1 January 2025 |
| Physical cores | 28 | 24 |
| Threads | 56 | 24 |
| Power consumption (TDP) | 225 Watt | 55 Watt |
EPYC 7453 has 16.7% more physical cores and 133.3% more threads.
Ultra 9 275HX, on the other hand, has a 20.6% higher aggregate performance score, an age advantage of 3 years, and 309.1% lower power consumption.
The Core Ultra 9 275HX is our recommended choice as it beats the EPYC 7453 in performance tests.
Be aware that EPYC 7453 is a server/workstation processor while Core Ultra 9 275HX is a notebook one.
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