Intel Core Ultra 9 285HX vs Intel Core Ultra 7 255HX

Compare Intel Core Ultra (Series 2) 24 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

17532 points
30% slightly better overall score
13450 points

Gaming Score

The raw gaming performance with a fast GPU

15815 points
13% slightly better gaming score
13943 points

Multitasking Score

Performance in workloads using up to 8 cores

18156 points
36% slightly better multitasking score
13299 points

Heavy Workload Score

Performance in workloads using up to 16 cores

18414 points
38% slightly better heavy workload score
13279 points

Free CPU Benchmark

Want to compare your processor against the Core Ultra 9 285HX 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)

515.66 points
26% slightly higher Blender score
406.07 points

Specifications

Cores

Number of physical processing units

24
20% slightly more cores
20

Threads

Number of logical processing units

24
20% slightly more threads
20

Clock Speed

Base frequency at which the chip operates

2.8 GHz
16% slightly higher clock speed
2.4 GHz

Turbo Speed

Higher frequency used for heavy workloads

5.5 GHz
5% slightly higher turbo speed
5.2 GHz

PCIe Lanes

Number of physical connections between the CPU and expansion slots

24
Identical
24

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

256 GiB
Identical
256 GiB

L2 Cache

Secondary embedded memory, slower than L1 cache

40 MiB
11% slightly more L2 cache
36 MiB

L3 Cache

General memory pool for all cores

36 MiB
20% slightly more L3 cache
30 MiB

Other details

Rank

Ranking in the hardwareDB database

5th of 1,099
37th of 1,099

Family

The product line

Core Ultra (Series 2)
Core Ultra (Series 2)

Release date

The official date of release of this chip

2025 February
2025 February

Memory Type

The type of memory used by this chip

DDR5-6400
DDR5-6400

Supports ECC memory

Does this CPU support error correcting memory

Yes
No

Core Ultra 9 285HX vs Core Ultra 7 255HX comparison

In our benchmarks, the Core Ultra 9 285HX beats the Core Ultra 7 255HX in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core Ultra 7 255HX in all gaming tests too.

With info from our database, we find that the Core Ultra 9 285HX has slightly more cores with 24 cores whereas the Core Ultra 7 255HX has 20 cores. It also has more threads than the Core Ultra 7 255HX. Our comparison shows that the Core Ultra 9 285HX has a slightly higher clock speed compared to the Core Ultra 7 255HX. Also, the Core Ultra 9 285HX has a slightly higher turbo speed. The info from our database shows that the Core Ultra 9 285HX has more L2 cache than the Core Ultra 7 255HX. The Core Ultra 9 285HX also has slightly 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. For instance, the Core Ultra 9 285HX has the same number of threads as cores. This means the the CPU does not support hyperthreading.

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