Ryzen 5 5600X vs Core i9-9900X

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Aggregate performance score

Core i9-9900X
10 cores / 20 threads, 165 Watt
Ryzen 5 5600X
6 cores / 12 threads, 65 Watt

Primary details

Comparing Core i9-9900X and Ryzen 5 5600X processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking488484
Place by popularitynot in top-10015
Cost-effectiveness evaluation11.8134.77
Market segmentDesktop processorDesktop processor
SeriesIntel Core i9AMD Ryzen 5
Architecture codenameSkylake (server) (2017−2019)Vermeer (Zen 3)
Release date8 October 2018 (5 years ago)8 October 2020 (3 years ago)
Launch price (MSRP)$989$299
Current price$474 (0.5x MSRP)$244 (0.8x MSRP)

Cost-effectiveness evaluation

Performance per price, higher is better.

Ryzen 5 5600X has 194% better value for money than i9-9900X.

Detailed specifications

Core i9-9900X and Ryzen 5 5600X 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 cores10 (Deca-Core)6 (Hexa-Core)
Base clock speed3.5 GHz3.7 GHz
Boost clock speed3.5 GHz4.6 GHz
Bus support4 × 8 GT/sno data
L1 cache640 KB384 KB
L2 cache10 MB3 MB
L3 cache19.25 MB (shared)32 MB
Chip lithography14 nm7 nm
Die sizeno data2x 80.7 + 125 (I/O) mm2
Maximum core temperatureno data95 °C
Maximum case temperature (TCase)72 °C95 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplierYesYes


Information on Core i9-9900X and Ryzen 5 5600X 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 configuration1 (Uniprocessor)1
Power consumption (TDP)165 Watt65 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9900X and Ryzen 5 5600X. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataDDR4-3200 RAM, PCIe 4, MMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHA
Enhanced SpeedStep (EIST)+no data
TSX+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9900X and Ryzen 5 5600X are enumerated here.

AMD-Vno data+
VT-d+no data
VT-x+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9900X and Ryzen 5 5600X. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4 Quad-channelDDR4
Maximum memory size128 GB128 GB
Max memory channels42
Maximum memory bandwidth85.33 GB/s51.196 GB/s
ECC memory support--

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/A-


Specifications and connection of peripherals supported by Core i9-9900X and Ryzen 5 5600X.

PCIe version3.04.0
PCI Express lanes44no data

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.

i9-9900X 14.10
Ryzen 5 5600X 14.16


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%

i9-9900X 21801
Ryzen 5 5600X 21897

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%

i9-9900X 1455
Ryzen 5 5600X 2094

Ryzen 5 5600X outperforms Core i9-9900X by 44% 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%

i9-9900X 9320
Ryzen 5 5600X 8661

Core i9-9900X outperforms Ryzen 5 5600X by 8% in GeekBench 5 Multi-Core.

Gaming performance

Pros & cons summary

Performance score 14.10 14.16
Recency 8 October 2018 8 October 2020
Physical cores 10 6
Threads 20 12
Cost $989 $299
Chip lithography 14 nm 7 nm
Power consumption (TDP) 165 Watt 65 Watt

i9-9900X has 66.7% more physical cores and 66.7% more threads.

Ryzen 5 5600X, on the other hand, has a 0.4% higher aggregate performance score, an age advantage of 2 years, its recommended price lower by $690, a 100% more advanced lithography process, and 153.8% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i9-9900X and Ryzen 5 5600X.

Should you still have questions on choice between Core i9-9900X and Ryzen 5 5600X, ask them in Comments section, and we shall answer.

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Intel Core i9-9900X
Core i9-9900X
AMD Ryzen 5 5600X
Ryzen 5 5600X

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Community ratings

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