AMD Ryzen 9 7900X vs AMD Ryzen 9 9900X3D

Compare AMD Ryzen 9 Desktop 12 core CPU vs AMD Ryzen 9000 Series 12 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Specifications
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AMD Ryzen 9 9900X3D

Price

The cheapest price from our partner retailers

$ 314.49

$ 254.56 significantly less expensive

$ 569.05

Benchmark Score

Overall Score

A combined score of all workloads

13554 points

15772 points

16% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

13457 points

15040 points

11% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

13583 points

16008 points

17% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

13587 points

16094 points

18% slightly better heavy workload score

Free CPU Benchmark

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Other Benchmarks

3DMark Physics score

Physics simulation benchmark

12798 points

13700 points

7% slightly higher 3DMark Physics score

Blender score

Cycles Render (Samples per minute)

412.82 points

466.69 points

13% slightly higher Blender score

Geekbench 6 (multi) score

Multi threaded benchmark

17750 points

20191 points

13% slightly higher Geekbench 6 (multi) score

Geekbench 6 (single) score

Single threaded benchmark

2946 points

3294 points

11% slightly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

Identical

Threads

Number of logical processing units

Identical

Clock Speed

Base frequency at which the chip operates

4.7 GHz

6% slightly higher clock speed

4.4 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.6 GHz

1% slightly higher turbo speed

5.5 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

170 W

120 W

41% slightly lower TDP

Memory Channels

Lanes for simultaneous memory access

Identical

L1 Cache

Smallest embedded memory, but the fastest

768 KiB

960 KiB

25% slightly more L1 cache

L2 Cache

Secondary embedded memory, slower than L1 cache

12 MiB

Identical

12 MiB

L3 Cache

General memory pool for all cores

64 MiB

128 MiB

100% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

36th of 1,089

19th of 1,089

Family

The product line

Ryzen 9 Desktop

Ryzen 9000 Series

Release date

The official date of release of this chip

2022 September

2025 March

Memory Type

The type of memory used by this chip

DDR5

Is Unlocked

Can this CPU can be overclocked

Yes

Supports ECC memory

Does this CPU support error correcting memory

Yes

Ryzen 9 7900X vs Ryzen 9 9900X3D comparison

According to the hardwareDB Benchmark tool, the Ryzen 9 9900X3D is faster than the Ryzen 9 7900X. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 7900X in all gaming tests too.

When comparing these CPUs we notice that they have the same number of cores and the same number of threads. These CPUs have different clock speeds. Indeed, the Ryzen 9 7900X has a slightly higher clock speed compared to the Ryzen 9 9900X3D. Also, the Ryzen 9 7900X has a slightly higher turbo speed. The Ryzen 9 9900X3D outputs less heat than Ryzen 9 7900X thanks to a slightly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. When comparing cache sizes, these CPUs have an identical amount of L2 cache. The Ryzen 9 9900X3D also has significantly more L3 cache.

Modern CPUs generally have more logical cores than physical cores, this means that each core is split into multiple virtual cores, improving efficiency for parallel workloads. Indeed, the Ryzen 9 7900X has more threads than cores. Each physical core is split into multiple threads.