Intel Core i9-7940X

Intel Core i9-7940X Benchmark and Specs

Intel Core i9-7940X Processor benchmark, specs and release date - 3 GHz 14 core Intel Core X-series LGA 2066 CPU rating. Is the Core i9-7940X good for gaming?

Benchmark Score

52 %
Very Good score from 1 sample
High uncertainty
Performance
Very Good
Ranking
129th of 627
Popularity
485th of 627
Samples
1 benchmarks

CPU benchmarks

Here are the performance results of this CPU in both the hardwareDB Benchmark and other benchmark utilities. Synthetic tests are an estimation of real-world performance using consistent and repeatable benchmarks.

Overall

Very Good

52 %

Gaming

Very Good

62 %

Multitasking

Very Good

49 %

Heavy Workloads

Very Good

49 %

Want to compare your CPU against the Core i9-7940X and these results? Download our free and quick PC Performance Test.

Alternative benchmarks

Here are some benchmark results using alternative testing software

Blender

Blender

Cycles Render (Samples per minute)

315
Geekbench 5 (multi)

Geekbench 5 (multi)

Multi threaded benchmark

9,233
Geekbench 5 (single)

Geekbench 5 (single)

Single threaded benchmark

1,299
Geekbench 6 (multi)

Geekbench 6 (multi)

Multi threaded benchmark

9,703
Geekbench 6 (single)

Geekbench 6 (single)

Single threaded benchmark

1,336

Compare these benchmarks and specs using our CPU Comparison Tool

Quick compare

Search for a CPU to compare against or choose a popular comparison below.

CPU Comparison

The Intel Core i9-7940X compared against popular alternatives. Compare against more CPUs with our CPU Comparison Tool.

Intel Core i9-10900X
75 %
Intel Core i5-11600K
66 %
AMD Ryzen 9 5900HS
63 %
Intel Core i7-11800H
63 %
Intel Xeon W-11855M
62 %
Intel Core i9-7940X
52 %
Intel Core i7-11850H
52 %

Specifications

Clock Speed 3.1 GHz
Turbo Speed 4.3 GHz
Cores 14
Threads 28
L1 Cache 896 KiB
L3 Cache 25 MiB
PCIe Revision 3
PCIe Lanes 44
Socket LGA 2066
Family Core X-series
Memory Type DDR4-2666
Memory Channels 4
Max Memory 128 GiB
Release Date 2017-08-01
Supports ECC Memory No
Has Unlocked Multiplier Yes
TDP 165 W

More Intel Core X-series CPUs

Core i7-5820K
Core i7-5820K
Core i7-5960X
Core i7-5960X
Core i7-3820
Core i7-3820
Core i7-3960X
Core i7-3960X
Core i9-7900X
Core i9-7900X
Core i7-5930K
Core i7-5930K
Core i9-10900X
Core i9-10900X
Core i7-4930MX
Core i7-4930MX
Core i7-3940XM
Core i7-3940XM

Intel Core i9-7940X

The Core i9-7940X is a 14 core CPU from Intel released in 2017. This chip has a very good overall score at 52% in our CPU benchmark. Our gaming benchmark shows that this CPU is a very good processor for gaming, with a score of 62%. As for multitasking and heavy workloads, the Core i9-7940X scores 49% and 49% respectively. Indeed, this is a very good rating for very heavy workloads.

The Core i9-7940X has 14 cores and 28 threads. This CPU makes use of simultaneous multithreading technology to improve performance on parallel tasks. Each physical CPU core is divided into multiple logical processors. This Intel CPU has a clock speed of 3.1 GHz and a turbo speed of 4.3 GHz : a higher clock speed that can be reached when thermals and power delivery allow. This CPU has an unlocked multiplier and allows for overclocking. With adequate cooling and a good power supply, it's possible to run this CPU at a higher clock speed.

As for memory, the Core i9-7940X makes use of DDR4-2666 memory. The faster the memory, the better. Faster memory means that the CPU doesn't have to wait to get the data it needs. It can accommodate a maximum of 128 GiB of memory. Furthermore, this chip can handle up to 4 channels of RAM, a multichannel memory architecture allows for higher data transfer between the CPU and the memory. However, to take advantage of this, you must have enough memory slots filled. Error correcting memory is not supported on this processor.

In terms of cache, the Core i9-7940X has 896 KiB of level 1 cache, and 25 MiB of level 3 cache. This is a fast memory located close to the processor, which stores copies of frequently used data from main memory.

This CPU has fast connectivity with support for PCI-Express Gen 3. The faster the PCIe link, the better. This allows for better performance with GPUs and NVME SSDs. It has a total of 44 PCIe lanes.

Power and thermals for the Intel Core i9-7940X CPU are a TDP (Thermal Design Power) of 165 watts. This measures the amount of heat the processor produces when running at full load. This isn't a measure of power consumption, but it's good estimate.

To figure out your PCs processor specs and performance, download our free CPU Benchmark utility.

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