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Intel Core Ultra X7 358H vs Intel Core Ultra X9 388H: Comparison
What is the difference between Core Ultra X7 358H and Core Ultra X9 388H?
The first real difference is p-core boost clock: Core Ultra X7 358H 4.8 GHz against Core Ultra X9 388H 5.1 GHz. P-core base clock is not the same on both, 1.9 GHz on the Core Ultra X7 358H versus 2.1 GHz on the Core Ultra X9 388H. E-core base clock is not the same on both, 1.5 GHz on the Core Ultra X7 358H versus 1.6 GHz on the Core Ultra X9 388H. They differ on product line too, Core Ultra X7 on the Core Ultra X7 358H versus Core Ultra X9 on the Core Ultra X9 388H. Igpu is not the same on both, Intel Arc on the Core Ultra X7 358H versus Intel Arc B390 on the Core Ultra X9 388H.
Who each one is for
Take the Core Ultra X7 358H for thin laptops that rely on 12 Xe3-core Arc graphics instead of a discrete GPU. The same goes for multitasking and creative work using 16 cores with a boost up to 4.8 GHz. It is not the one for systems that need DDR5 SO-DIMM memory, as this chip is listed for LPDDR5x. Buy the Core Ultra X9 388H for thin laptops needing 12 Xe3-core Arc B390 graphics. It is equally the pick for users wanting a boost clock up to 5.1 GHz, 16 cores and a 50 TOPS NPU. It is the wrong buy for laptops needing DDR5 SO-DIMM slots, since this chip is listed for LPDDR5x.
Where the two are identical
Everything else lines up. Total cores, performance cores, efficiency cores, low power efficiency cores and total threads read the same on both, so those are not worth weighing. They match on 13 further specifications as well.
Frequently asked questions
Is the TDP the same on the Core Ultra X7 358H and Core Ultra X9 388H?
It is. Both are listed at 25 W, so it is not a reason to pick one over the other.
Specs and benchmarks
Brand
- Intel Core Ultra X7 358H
- Intel
- Intel Core Ultra X9 388H
- Intel
Product Line
- Intel Core Ultra X7 358H
- Core Ultra X7
- Intel Core Ultra X9 388H
- Core Ultra X9
Form Factor
- Intel Core Ultra X7 358H
- Laptop
- Intel Core Ultra X9 388H
- Laptop
Model Number
- Intel Core Ultra X7 358H
- 358H
- Intel Core Ultra X9 388H
- 388H
Codename
- Intel Core Ultra X7 358H
- Panther Lake
- Intel Core Ultra X9 388H
- Panther Lake
Release Year
- Intel Core Ultra X7 358H
- 2026
- Intel Core Ultra X9 388H
- 2026
TDP
- Intel Core Ultra X7 358H
- 25 W
- Intel Core Ultra X9 388H
- 25 W
iGPU
- Intel Core Ultra X7 358H
- Intel Arc (12 Xe3-cores)
- Intel Core Ultra X9 388H
- Intel Arc B390 (12 Xe3-cores)
Market Segment
- Intel Core Ultra X7 358H
- Laptop
- Intel Core Ultra X9 388H
- Laptop
Microarchitecture
- Intel Core Ultra X7 358H
- Panther Lake, Intel Core Ultra Series 3
- Intel Core Ultra X9 388H
- Panther Lake, Intel Core Ultra Series 3
Socket
- Intel Core Ultra X7 358H
- FCBGA2540
- Intel Core Ultra X9 388H
- FCBGA2540
Process Node
- Intel Core Ultra X7 358H
- 18 nm
- Intel Core Ultra X9 388H
- 18 nm
Total Cores
- Intel Core Ultra X7 358H
- 16
- Intel Core Ultra X9 388H
- 16
Performance Cores
- Intel Core Ultra X7 358H
- 4
- Intel Core Ultra X9 388H
- 4
Efficiency Cores
- Intel Core Ultra X7 358H
- 8
- Intel Core Ultra X9 388H
- 8
Total Threads
- Intel Core Ultra X7 358H
- 16
- Intel Core Ultra X9 388H
- 16
SMT Enabled
- Intel Core Ultra X7 358H
- No
- Intel Core Ultra X9 388H
- No
P-Core Base Clock
- Intel Core Ultra X7 358H
- 1.9 GHz
- Intel Core Ultra X9 388H
- 2.1 GHz
P-Core Boost Clock
- Intel Core Ultra X7 358H
- 4.8 GHz
- Intel Core Ultra X9 388H
- 5.1 GHz
E-Core Base Clock
- Intel Core Ultra X7 358H
- 1.5 GHz
- Intel Core Ultra X9 388H
- 1.6 GHz
L3 Cache
- Intel Core Ultra X7 358H
- 18 MB
- Intel Core Ultra X9 388H
- 18 MB
Base Power
- Intel Core Ultra X7 358H
- 25 W
- Intel Core Ultra X9 388H
- 25 W
Max Turbo Power
- Intel Core Ultra X7 358H
- 80 W
- Intel Core Ultra X9 388H
- 80 W
Memory Type
- Intel Core Ultra X7 358H
- LPDDR5x
- Intel Core Ultra X9 388H
- LPDDR5x
Integrated Graphics
- Intel Core Ultra X7 358H
- Yes
- Intel Core Ultra X9 388H
- Yes
NPU Peak TOPS
- Intel Core Ultra X7 358H
- 50 TOPS (NPU 5)
- Intel Core Ultra X9 388H
- 50 TOPS (NPU 5)
Low Power Efficiency Cores
- Intel Core Ultra X7 358H
- 4
- Intel Core Ultra X9 388H
- 4
Which one should you pick?
Choose 358H if you want the higher L3 cache (18 MB vs 18 MB).
Choose 388H if you already have it on hand or find it at a lower price.