Intel Core i7-9800X vs Intel Core Ultra 7 155H

Compare Intel Core X-series 8 core CPU vs Intel Core Ultra (Series 1) 16 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

$ 768.88
$ 731.11 significantly less expensive
$ 1499.99

Benchmark Score

Overall Score

A combined score of all workloads

6761 points
7084 points
4% slightly better overall score

Gaming Score

The raw gaming performance with a fast GPU

8246 points
9220 points
11% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

6264 points
6469 points
3% slightly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

6133 points
6362 points
3% slightly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i7-9800X and the Core Ultra 7 155H? Download our free and quick PC Performance Test.

Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

163.68 points
2% slightly higher Blender score
159.93 points

Specifications

Cores

Number of physical processing units

8
16
100% significantly more cores

Threads

Number of logical processing units

16
22
37% slightly more threads

Clock Speed

Base frequency at which the chip operates

3.8 GHz
171% significantly higher clock speed
1.4 GHz

Turbo Speed

Higher frequency used for heavy workloads

4.4 GHz
4.8 GHz
9% slightly higher turbo speed

PCIe Lanes

Number of physical connections between the CPU and expansion slots

44
57% significantly more pcie lanes
28

Memory Channels

Lanes for simultaneous memory access

4
100% significantly more memory channels
2

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
33% slightly more supported memory
96 GiB

L3 Cache

General memory pool for all cores

5 MiB
24 MiB
380% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

206th of 1,089
186th of 1,089

Family

The product line

Core X-series
Core Ultra (Series 1)

Release date

The official date of release of this chip

2018 November
2023 November

Memory Type

The type of memory used by this chip

DDR4-2666
DDR5-7467

Is Unlocked

Can this CPU can be overclocked

Yes
-

Supports ECC memory

Does this CPU support error correcting memory

No
No

Core i7-9800X vs Core Ultra 7 155H specs and performance

In our benchmarks, the Core Ultra 7 155H beats the Core i7-9800X in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i7-9800X in all gaming tests too.

In terms of the number of cores of each of these CPUs, the Core Ultra 7 155H has significantly more cores than the Core i7-9800X. Indeed, the Core Ultra 7 155H has 16 cores compared to 8 cores found in the Core i7-9800X. It also has more threads than the Core i7-9800X. With our hardware info, we find that the Core i7-9800X has a significantly higher clock speed than the Core Ultra 7 155H. Despite this, the Core Ultra 7 155H has a slightly higher turbo speed.

Most CPUs have more threads than cores. This technology, colloquially called hyperthreading, improves performance by splitting a core into multiple virtual ones. This provides more efficient utilisation of a core. Indeed, the Core i7-9800X has more threads than cores. Each physical core is split into multiple threads.

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