Intel Core i9-9940X: specs and benchmarks

Intel Core i9-9940X


Intel started Intel Core i9-9940X sales 19 October 2018 at a recommended price of $1,387. This is Skylake-X architecture desktop processor primarily aimed at home systems. It has 14 cores and 28 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 4500 MHz and an unlocked multiplier.

Compatibility-wise, this is Intel Socket 2066 processor with a TDP of 165 Watt. It supports DDR4 Quad-channel memory.

It provides good benchmark performance at 37.89 percent of a leader's which is AMD Ryzen Threadripper 3990X.

General info

Of Core i9-9940X processor market type (desktop or notebook), architecture and sales start time and price.
Place in performance rating
Value for money (0-100)
Intel Core i9
Architecture codename
Release date
19 October 2018
Launch price (MSRP)
Price now
of 8685 (Xeon E5-4650L)

Technical specs

Core i9-9940X's quantitative parameters such as cores and threads number, clocks, manufacturing process, cache size and multiplier lock state. These parameters indirectly say of Core i9-9940X's performance, but to be more precise you have to review its test results.
Number of cores
Number of threads
Base frequency
3.3 GHz
of 2000 (Core i7-4750HQ)
Maximum frequency
4.5 GHz
Bus support
4 × 8 GT / s
L1 cache
64K (per core)
of 896 (Atom C3950)
L2 cache
1 MB (per core)
of 8 (FX-8350)
L3 cache
19.25 MB (shared)
Manufacturing process technology
14 nm
64 bit support


Information on Core i9-9940X compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one.
Max number of CPUs in a configuration
1 (Uniprocessor)
Power consumption (TDP)
165 Watt
of 650 (Atom Z500)

Technologies and extensions

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9940X are enumerated here.

Memory specs

Types, maximum amount and channel number of RAM supported by Core i9-9940X.
Supported memory types
DDR4 Quad-channel
of 2933 (Ryzen 5 2500X)
Maximum memory size
128 GB
Max memory channels
Maximum memory bandwidth
79.47 GB / s
of 262.26 (Xeon Platinum 9221)

Graphics specifications

General parameters of GPU integrated into Core i9-9940X.
Integrated graphics

Benchmark performance

Non-gaming benchmarks performance of Core i9-9940X. Overall benchmark performance is measured in points in 0-100 range.

Overall benchmark performance




Game benchmarks

Let's see how good Core i9-9940X is for gaming compared with game system requirements. Remember that sometimes official requirements may reflect real performance inaccurately.

Relative perfomance

Overall Core i9-9940X performance compared to nearest competitors. All CPU types participate.

AMD equivalent

We believe that the nearest equivalent to Core i9-9940X from AMD is Ryzen Threadripper 2990WX, which is slower by 1% and lower by 2 positions in our rating.

User rating

Here you can see the rating of the processor by users, as well as give your rating.

Advices and comments

Here you can ask a question about Core i9-9940X, agree or disagree with our judgements, or report an error or mismatch.