Core i7-11800H vs EPYC 7451
Aggregate performance score
EPYC 7451 outperforms i7-11800H by a significant 26% based on our aggregate benchmark results.
Primary details
Comparing EPYC 7451 and Core i7-11800H processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 368 | 547 |
| Place by popularity | not in top-100 | 97 |
| Cost-effectiveness evaluation | 1.92 | no data |
| Market segment | Server | Laptop |
| Series | AMD EPYC | Tiger Lake |
| Architecture codename | Naples (2017−2018) | Tiger Lake-H (2021) |
| Release date | 20 June 2017 (7 years ago) | 11 May 2021 (3 years ago) |
| Launch price (MSRP) | $2,400 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
EPYC 7451 and Core i7-11800H 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 | 24 (Tetracosa-Core) | 8 (Octa-Core) |
| Threads | 48 | 16 |
| Base clock speed | 2.3 GHz | 1.9 GHz |
| Boost clock speed | 2.3 GHz | 4.6 GHz |
| L1 cache | 2.25 MB | 640 KB |
| L2 cache | 12 MB | 10 MB |
| L3 cache | 64 MB (shared) | 24 MB |
| Chip lithography | 14 nm | 10 nm |
| Die size | 213 mm2 | 190 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | no data | 72 °C |
| Number of transistors | 19200 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | Yes | No |
Compatibility
Information on EPYC 7451 and Core i7-11800H 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 (Multiprocessor) | 1 |
| Socket | TR4 | BGA1787 |
| Power consumption (TDP) | 180 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7451 and Core i7-11800H. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | no data | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Hyper-Threading Technology | no data | + |
| TSX | no data | + |
Security technologies
EPYC 7451 and Core i7-11800H technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7451 and Core i7-11800H are enumerated here.
| AMD-V | + | no data |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7451 and Core i7-11800H. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR4 |
| Maximum memory size | 2 TiB | no data |
| Max memory channels | 8 | no data |
| Maximum memory bandwidth | 170.671 GB/s | 51.2 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics Xe 32EUs (Tiger Lake-H) |
Peripherals
Specifications and connection of peripherals supported by EPYC 7451 and Core i7-11800H.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 128 | 20 |
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.
EPYC 7451 outperforms Core i7-11800H by 26% based on our aggregate benchmark results.
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.
Benchmark coverage: 68%
EPYC 7451 outperforms Core i7-11800H by 26% in Passmark.
Pros & cons summary
| Performance score | 16.72 | 13.27 |
| Recency | 20 June 2017 | 11 May 2021 |
| Physical cores | 24 | 8 |
| Threads | 48 | 16 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 180 Watt | 45 Watt |
EPYC 7451 has a 26% higher aggregate performance score, and 200% more physical cores and 200% more threads.
i7-11800H, on the other hand, has an age advantage of 3 years, a 40% more advanced lithography process, and 300% lower power consumption.
The EPYC 7451 is our recommended choice as it beats the Core i7-11800H in performance tests.
Be aware that EPYC 7451 is a server/workstation processor while Core i7-11800H is a notebook one.
Should you still have questions on choice between EPYC 7451 and Core i7-11800H, ask them in Comments section, and we shall answer.
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