Ryzen 5 6600U vs i9-9940X

Aggregate performance score

Core i9-9940X
2018
14 cores / 28 threads, 165 Watt
17.61
+69%
Ryzen 5 6600U
2022
6 cores / 12 threads, 15 Watt
10.42

Core i9-9940X outperforms Ryzen 5 6600U by an impressive 69% based on our aggregate benchmark results.

Primary details

Comparing Core i9-9940X and Ryzen 5 6600U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking350742
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.11no data
Market segmentDesktop processorLaptop
SeriesIntel Core i9AMD Rembrandt (Zen 3+)
Power efficiency10.1065.74
Architecture codenameSkylake (server) (2017−2018)Rembrandt-U (Zen 3+) (2022)
Release date8 October 2018 (6 years ago)January 2022 (2 years ago)
Launch price (MSRP)$1,387no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-9940X and Ryzen 5 6600U 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 cores14 (Tetradeca-Core)6 (Hexa-Core)
Threads2812
Base clock speed3.3 GHz2.9 GHz
Boost clock speed4.5 GHz4.5 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/sno data
Multiplier33no data
L1 cache896 KB64K (per core)
L2 cache14 MB512K (per core)
L3 cache19.25 MB (shared)16 MB (shared)
Chip lithography14 nm6 nm
Die size484 mm2208 mm2
Maximum core temperature88 °C95 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Core i9-9940X and Ryzen 5 6600U 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
SocketFCLGA2066FP7
Power consumption (TDP)165 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9940X and Ryzen 5 6600U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512MMX, 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-+
AVX++
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+-
Turbo Boost Max 3.0+no data
Precision Boost 2no data+

Security technologies

Core i9-9940X and Ryzen 5 6600U technologies aimed at improving security, for example, by protecting against hacks.

EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9940X and Ryzen 5 6600U 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 i9-9940X and Ryzen 5 6600U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR5
Maximum memory size128 GBno data
Max memory channels4no data
Maximum memory bandwidth85.33 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AAMD Radeon 660M

Peripherals

Specifications and connection of peripherals supported by Core i9-9940X and Ryzen 5 6600U.

PCIe version3.04.0
PCI Express lanes4420

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.

i9-9940X 17.61
+69%
Ryzen 5 6600U 10.42

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.

i9-9940X 27975
+69.1%
Ryzen 5 6600U 16545

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.

i9-9940X 1465
Ryzen 5 6600U 1652
+12.8%

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.

i9-9940X 10309
+59%
Ryzen 5 6600U 6485

Gaming performance

Pros & cons summary


Performance score 17.61 10.42
Physical cores 14 6
Threads 28 12
Chip lithography 14 nm 6 nm
Power consumption (TDP) 165 Watt 15 Watt

i9-9940X has a 69% higher aggregate performance score, and 133.3% more physical cores and 133.3% more threads.

Ryzen 5 6600U, on the other hand, has a 133.3% more advanced lithography process, and 1000% lower power consumption.

The Core i9-9940X is our recommended choice as it beats the Ryzen 5 6600U in performance tests.

Note that Core i9-9940X is a desktop processor while Ryzen 5 6600U is a notebook one.


Should you still have questions on choice between Core i9-9940X and Ryzen 5 6600U, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core i9-9940X
Core i9-9940X
AMD Ryzen 5 6600U
Ryzen 5 6600U

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Community ratings

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Questions & comments

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