Ryzen 5 8540U vs Ryzen 9 7900X

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Aggregate performance score

Ryzen 9 7900X
2022
12 cores / 24 threads, 170 Watt
31.99
+179%
Ryzen 5 8540U
2023
6 cores / 12 threads, 28 Watt
11.46

Ryzen 9 7900X outperforms Ryzen 5 8540U by a whopping 179% based on our aggregate benchmark results.

Primary details

Comparing processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking160781
Place by popularitynot in top-100not in top-100
Market segmentDesktop processorLaptop
Power efficiency18.1539.48
DesignerAMDAMD
ManufacturerTSMCTSMC
Architecture codenameRaphael (Zen4) (2022−2023)Hawk Point-U (Zen 4 + Zen 4c) (2023−2025)
Release date27 September 2022 (2 years ago)6 December 2023 (1 year ago)

Detailed specifications

Ryzen 9 7900X and Ryzen 5 8540U 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 cores12 (Dodeca-Core)6 (Hexa-Core)
Threads2412
Base clock speed4.7 GHz3.2 GHz
Boost clock speed5.6 GHz4.9 GHz
L1 cache64K (per core)64 KB (per core)
L2 cache1 MB (per core)1 MB (per core)
L3 cache64 MB (shared)16 MB (shared)
Chip lithography5 nm4 nm
Die size2x 70 (CCD) mm2 + 122 (I/O) mm2137 mm2
Maximum core temperature95 °C100 °C
Maximum case temperature (TCase)47 °Cno data
Number of transistorsCCD: 6,5 Mrd + IOD: 3,4 Mrd Million20,900 million
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 7900X and Ryzen 5 8540U 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 configuration11
SocketAM5FP7
Power consumption (TDP)170 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 7900X and Ryzen 5 8540U. You'll probably need this information if you require some particular technology.

Instruction set extensions5 nm (CCD), 6 nm (I/O) nm, 0.650 - 1.475VAES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI++
AVX++
Precision Boost 2++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 9 7900X and Ryzen 5 8540U are enumerated here.

AMD-V++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7900X and Ryzen 5 8540U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5-5200DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardAMD Radeon Graphics (Ryzen 7000)AMD Radeon 740M ( - 2800 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 7900X and Ryzen 5 8540U.

PCIe version5.04.0
PCI Express lanes2414

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.

Ryzen 9 7900X 31.99
+179%
Ryzen 5 8540U 11.46

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. Other than that, Passmark measures multi-core performance.

Ryzen 9 7900X 51438
+179%
Ryzen 5 8540U 18426

Geekbench 5.5 Multi-Core

Ryzen 9 7900X 20668
+171%
Ryzen 5 8540U 7632

7-Zip Single

Ryzen 9 7900X 8269
+36%
Ryzen 5 8540U 6079

7-Zip

Ryzen 9 7900X 127195
+217%
Ryzen 5 8540U 40137

WebXPRT 4 Overall

Ryzen 9 7900X 305
+26.9%
Ryzen 5 8540U 240

Blender v3.3 Classroom CPU(-)

Ryzen 9 7900X 166
Ryzen 5 8540U 598
+260%

Geekbench 6.4 Multi-Core

Ryzen 9 7900X 18300
+97.2%
Ryzen 5 8540U 9280

Geekbench 6.4 Single-Core

Ryzen 9 7900X 2990
+19.4%
Ryzen 5 8540U 2504

Gaming performance

Pros & cons summary


Performance score 31.99 11.46
Integrated graphics card 4.21 7.89
Recency 27 September 2022 6 December 2023
Physical cores 12 6
Threads 24 12
Chip lithography 5 nm 4 nm
Power consumption (TDP) 170 Watt 28 Watt

Ryzen 9 7900X has a 179.1% higher aggregate performance score, and 100% more physical cores and 100% more threads.

Ryzen 5 8540U, on the other hand, has 87.4% faster integrated GPU, an age advantage of 1 year, a 25% more advanced lithography process, and 507.1% lower power consumption.

The AMD Ryzen 9 7900X is our recommended choice as it beats the AMD Ryzen 5 8540U in performance tests.

Note that Ryzen 9 7900X is a desktop processor while Ryzen 5 8540U is a notebook one.

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AMD Ryzen 9 7900X
Ryzen 9 7900X
AMD Ryzen 5 8540U
Ryzen 5 8540U

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Community ratings

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