AMD Ryzen 9 3900X vs Intel Core i7-11700KF

Compare AMD Ryzen 9 Desktop 12 core CPU vs Intel 11th Generation Core i7 8 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Price

The cheapest price from our partner retailers

$ 229.99
$ 69.01 significantly less expensive
$ 299.00

Benchmark Score

Overall Score

A combined score of all workloads

8422 points
18% slightly better overall score
7085 points

Gaming Score

The raw gaming performance with a fast GPU

8440 points
9129 points
8% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

8406 points
31% slightly better multitasking score
6412 points

Heavy Workload Score

Performance in workloads using up to 16 cores

8392 points
34% slightly better heavy workload score
6235 points

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900X and the Core i7-11700KF? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

8594 points
5% slightly higher 3DMark Physics score
8133 points
Blender score

Blender score

Cycles Render (Samples per minute)

276.80 points
40% slightly higher Blender score
197.54 points
Geekbench 5 (multi) score

Geekbench 5 (multi) score

Multi threaded benchmark

9929 points
4% slightly higher Geekbench 5 (multi) score
9526 points
Geekbench 5 (single) score

Geekbench 5 (single) score

Single threaded benchmark

1667 points
2119 points
27% slightly higher Geekbench 5 (single) score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

9907 points
10286 points
3% slightly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1704 points
2275 points
33% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

12
49% significantly more cores
8

Threads

Number of logical processing units

24
49% significantly more threads
16

Clock Speed

Base frequency at which the chip operates

3.80 GHz
5% slightly higher clock speed
3.6 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
5 GHz
8% slightly higher turbo speed

TDP

Thermal Design Power: Measure of heat generated by the CPU

105 W
19% slightly lower TDP
125 W

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L1 Cache

Smallest embedded memory, but the fastest

768 KiB
20% slightly more L1 cache
640 KiB

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
49% significantly more L2 cache
4 MiB

L3 Cache

General memory pool for all cores

64 MiB
300% significantly more L3 cache
16 MiB

Other details

Rank

Ranking in the hardwareDB database

130th of 1,089
185th of 1,089

Family

The product line

Ryzen 9 Desktop
11th Generation Core i7

Release date

The official date of release of this chip

2019 July
2021 February

Memory Type

The type of memory used by this chip

DDR4
DDR4-3200

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Supports ECC memory

Does this CPU support error correcting memory

-
No

Ryzen 9 3900X vs Core i7-11700KF specs and performance

According to the hardwareDB Benchmark tool, the Ryzen 9 3900X is faster than the Core i7-11700KF. Despite this, the Core i7-11700KF has the advantage in our gaming benchmark.

When comparing core counts for these CPUs, we notice that the Ryzen 9 3900X has significantly more cores with 12 cores compared to the Core i7-11700KF that has 8 cores. It also has more threads than the Core i7-11700KF. Our comparison shows that the Ryzen 9 3900X has a slightly higher clock speed compared to the Core i7-11700KF. Despite this, the Core i7-11700KF has a slightly higher turbo speed. A Ryzen 9 3900X CPU outputs less heat than a Core i7-11700KF CPU because of its slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Ryzen 9 3900X has significantly more L2 cache than the Core i7-11700KF. The Ryzen 9 3900X also has significantly more L3 cache.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Ryzen 9 3900X has more threads than cores. Each physical core is split into multiple threads.

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