Ryzen 7 5800U vs Core i9-7900X
Aggregate performance score
i9-7900X outperforms Ryzen 7 5800U by a moderate 14% based on our aggregate benchmark results.
Primary details
Comparing Core i9-7900X and Ryzen 7 5800U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 509 | 604 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 4.72 | no data |
| Market segment | Desktop processor | Laptop |
| Series | Core i9 (Desktop) | AMD Cezanne (Zen 3, Ryzen 5000) |
| Architecture codename | Skylake-X (2018) | Cezanne-U (Zen 3) |
| Release date | 26 June 2017 (7 years ago) | 12 January 2021 (3 years ago) |
| Launch price (MSRP) | $999 | no data |
| Current price | $864 (0.9x MSRP) | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-7900X and Ryzen 7 5800U 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 | 10 (Deca-Core) | 8 (Octa-Core) |
| Threads | 20 | 16 |
| Base clock speed | 3.3 GHz | 1.9 GHz |
| Boost clock speed | 4.5 GHz | 4.4 GHz |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 1 MB (per core) | 512K (per core) |
| L3 cache | 14 MB (shared) | 16 MB (shared) |
| Chip lithography | 14 nm | 7 nm |
| Die size | no data | 180 mm2 |
| Maximum core temperature | 95 °C | 105 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 10,700 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
| Unlocked multiplier | Yes | No |
Compatibility
Information on Core i9-7900X and Ryzen 7 5800U 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 | 1 |
| Socket | Socket R4 | FP6 |
| Power consumption (TDP) | 140 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-7900X and Ryzen 7 5800U. 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 | DDR4-3200/LPDDR4-4266 RAM, PCIe 3, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME |
| AES-NI | + | + |
| FMA | no data | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | no data |
| Turbo Boost Max 3.0 | + | no data |
| Status | Discontinued | no data |
Security technologies
Core i9-7900X and Ryzen 7 5800U technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-7900X and Ryzen 7 5800U 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 Core i9-7900X and Ryzen 7 5800U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR4 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 85 GB/s | no data |
| ECC memory support | - | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | AMD Radeon RX Vega 8 (Ryzen 4000/5000) |
Peripherals
Specifications and connection of peripherals supported by Core i9-7900X and Ryzen 7 5800U.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 44 | 8 |
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.
Core i9-7900X outperforms Ryzen 7 5800U by 14% 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%
Core i9-7900X outperforms Ryzen 7 5800U by 14% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Ryzen 7 5800U outperforms Core i9-7900X by 17% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Core i9-7900X outperforms Ryzen 7 5800U by 35% in GeekBench 5 Multi-Core.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Benchmark coverage: 20%
Core i9-7900X outperforms Ryzen 7 5800U by 21% in Cinebench 10 32-bit single-core.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
Benchmark coverage: 19%
Core i9-7900X outperforms Ryzen 7 5800U by 86% in Cinebench 10 32-bit multi-core.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Benchmark coverage: 18%
Ryzen 7 5800U outperforms Core i9-7900X by 41% in wPrime 32.
Cinebench 11.5 64-bit multi-core
Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.
Benchmark coverage: 17%
Core i9-7900X outperforms Ryzen 7 5800U by 62% in Cinebench 11.5 64-bit multi-core.
Cinebench 15 64-bit multi-core
Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.
Benchmark coverage: 15%
Core i9-7900X outperforms Ryzen 7 5800U by 33% in Cinebench 15 64-bit multi-core.
Cinebench 15 64-bit single-core
Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.
Benchmark coverage: 14%
Ryzen 7 5800U outperforms Core i9-7900X by 19% in Cinebench 15 64-bit single-core.
Cinebench 11.5 64-bit single-core
Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.
Benchmark coverage: 14%
Ryzen 7 5800U outperforms Core i9-7900X by 23% in Cinebench 11.5 64-bit single-core.
x264 encoding pass 2
x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.
Benchmark coverage: 13%
Core i9-7900X outperforms Ryzen 7 5800U by 50% in x264 encoding pass 2.
x264 encoding pass 1
x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.
Benchmark coverage: 13%
Ryzen 7 5800U outperforms Core i9-7900X by 6% in x264 encoding pass 1.
Pros & cons summary
| Performance score | 13.64 | 11.96 |
| Recency | 26 June 2017 | 12 January 2021 |
| Physical cores | 10 | 8 |
| Threads | 20 | 16 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 140 Watt | 15 Watt |
The Core i9-7900X is our recommended choice as it beats the Ryzen 7 5800U in performance tests.
Note that Core i9-7900X is a desktop processor while Ryzen 7 5800U is a notebook one.
Should you still have questions on choice between Core i9-7900X and Ryzen 7 5800U, ask them in Comments section, and we shall answer.
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