AMD Ryzen 9 7900 vs Intel Core Ultra 7 255HX

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

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Benchmark Score

Overall Score

A combined score of all workloads

13130 points
13450 points
2% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

13237 points
13943 points
5% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

13087 points
13299 points
1% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

13070 points
13279 points
1% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Ryzen 9 7900 and the Core Ultra 7 255HX? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

394.92 points
406.07 points
2% slightly higher Blender 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

3.70 GHz
54% significantly higher clock speed
2.4 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.4 GHz
3% slightly higher turbo speed
5.2 GHz

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

L2 Cache

Secondary embedded memory, slower than L1 cache

12 MiB
36 MiB
200% 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

39th of 1,103
36th of 1,103

Family

The product line

Ryzen 9
Core Ultra (Series 2)

Release date

The official date of release of this chip

2023 January
2025 February

Memory Type

The type of memory used by this chip

DDR5
DDR5-6400

Is Unlocked

Can this CPU can be overclocked

Yes
-

Supports ECC memory

Does this CPU support error correcting memory

-
No

Ryzen 9 7900 vs Core Ultra 7 255HX benchmarks

Our benchmark analysis concludes that the Core Ultra 7 255HX performs better than the Ryzen 9 7900. Furthermore, our gaming benchmark shows that it also outperforms the Ryzen 9 7900 in all gaming tests too.

With info from our database, we find that the Core Ultra 7 255HX has significantly more cores with 20 cores whereas the Ryzen 9 7900 has 12 cores. Despite this, the Ryzen 9 7900 has more threads than the Core Ultra 7 255HX. With our hardware info, we find that the Ryzen 9 7900 has a significantly higher clock speed than the Core Ultra 7 255HX. Also, the Ryzen 9 7900 has a slightly higher turbo speed. The cache sizes of these CPUs are different. Indeed, the Core Ultra 7 255HX has significantly more L2 cache than the Ryzen 9 7900. Despite this, the Ryzen 9 7900 has significantly more L3 cache compared to the Core Ultra 7 255HX.

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 7900 has more threads than cores. Each physical core is split into multiple threads.

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