AMD Ryzen 9 3900X vs Intel Core Ultra 7 265K

Compare AMD Ryzen 9 Desktop 12 core CPU vs Intel Core Ultra (Series 2) 20 core processor, specs and benchmark score. Which is the better CPU for gaming?

CPU Comparison

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Benchmark Score

Overall Score

A combined score of all workloads

8422 points
16691 points
98% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

8440 points
15383 points
82% significantly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

8406 points
17117 points
103% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

8392 points
17234 points
105% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 3900X and the Core Ultra 7 265K? Download our free and quick PC Performance Test.

Other Benchmarks

3DMark Physics score

3DMark Physics score

Physics simulation benchmark

8594 points
16561 points
92% significantly higher 3DMark Physics score
Blender score

Blender score

Cycles Render (Samples per minute)

276.80 points
467.43 points
68% significantly higher Blender score
Geekbench 6 (multi) score

Geekbench 6 (multi) score

Multi threaded benchmark

9907 points
20585 points
107% significantly higher Geekbench 6 (multi) score
Geekbench 6 (single) score

Geekbench 6 (single) score

Single threaded benchmark

1704 points
3063 points
79% significantly higher Geekbench 6 (single) score

Specifications

Cores

Number of physical processing units

12
20
66% significantly more cores

Threads

Number of logical processing units

24
20% slightly more threads
20

Clock Speed

Base frequency at which the chip operates

3.80 GHz
3.9 GHz
2% slightly higher clock speed

Turbo Speed

Higher frequency used for heavy workloads

4.6 GHz
5.5 GHz
19% slightly higher turbo speed

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L2 Cache

Secondary embedded memory, slower than L1 cache

6 MiB
36 MiB
499% significantly more L2 cache

L3 Cache

General memory pool for all cores

64 MiB
113% significantly more L3 cache
30 MiB

Other details

Rank

Ranking in the hardwareDB database

130th of 1,089
10th of 1,089

Family

The product line

Ryzen 9 Desktop
Core Ultra (Series 2)

Release date

The official date of release of this chip

2019 July
2024 November

Memory Type

The type of memory used by this chip

DDR4
DDR5-6400

Is Unlocked

Can this CPU can be overclocked

Yes
-

Supports ECC memory

Does this CPU support error correcting memory

-
Yes

Ryzen 9 3900X vs Core Ultra 7 265K comparison

In our benchmarks, the Core Ultra 7 265K beats the Ryzen 9 3900X in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 3900X in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core Ultra 7 265K has significantly more cores than the Ryzen 9 3900X. Indeed, the Core Ultra 7 265K has 20 cores compared to 12 cores found in the Ryzen 9 3900X. Despite this, the Ryzen 9 3900X has more threads than the Core Ultra 7 265K. With our hardware info, we find that the Core Ultra 7 265K has a slightly higher clock speed than the Ryzen 9 3900X. Also, the Core Ultra 7 265K has a slightly higher turbo speed. The cache sizes of these CPUs are different. Indeed, the Core Ultra 7 265K has significantly more L2 cache than the Ryzen 9 3900X. Despite this, the Ryzen 9 3900X has significantly more L3 cache compared to the Core Ultra 7 265K.

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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