Home > CPU Comparison > Core Ultra 9 275HX or Ryzen 9 9955HX: what's better?

Intel Core Ultra 9 275HX vs AMD Ryzen 9 9955HX

78 out of 100
Intel Core Ultra 9 275HX
VS
82 out of 100
AMD Ryzen 9 9955HX
Intel Core Ultra 9 275HX
AMD Ryzen 9 9955HX

We compared two laptop CPUs: the 2.7 GHz Intel Core Ultra 9 275HX with 24-cores against the 2.5 GHz AMD Ryzen 9 9955HX with 16-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments (7)

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
๐Ÿ”Œ Usage Scenario:

Key Differences

What are the key differences between 9955HX and 275HX
Advantages of Intel Core Ultra 9 275HX
  • More powerful Arc Graphics (4-Cores) integrated graphics: 1.9 vs 0.6 TFLOPS
  • Supports up to 256 GB DDR5-6400 RAM
  • Has 8 more physical cores
  • More modern manufacturing process โ€“ 3 versus 4 nanometers
Advantages of AMD Ryzen 9 9955HX
  • Has 28 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • 9% faster in a single-core Geekbench v6 test - 3273 vs 3001 points

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core Ultra 9 275HX
vs
Ryzen 9 9955HX

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench 2026 (Single) 500 717
Cinebench 2026 (Multi) 7832 8163
Cinebench Scores (30th and 16th place)
Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
File compression 1480 MB/sec 1520 MB/sec
Clang compilation 216.2 Klines/sec 222.1 Klines/sec
HTML 5 Browser 435.5 pages/sec 329.3 pages/sec
PDF Renderer 545.5 Mpixels/sec 545.2 Mpixels/sec
Text processing 344.8 pages/sec 341.3 pages/sec
Background blur 78.6 images/sec 70.4 images/sec
Photo processing 156.4 images/sec 123 images/sec
Ray tracing 46.2 Mpixels/sec 53.8 Mpixels/sec
Sources: GeekBench [1], [2]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 155.2 GOps/sec 213 GOps/sec
Floating point math 191.1 GOps/sec 137 GOps/sec
Find prime numbers 448M Primes/sec 288M Primes/sec
Random string sorting 74.3M Strings/sec 78.1M Strings/sec
Data encryption 47.1 GBytes/sec 37.4 GBytes/sec
Data compression 608.4 MBytes/sec 734.3 MBytes/sec
Physics 3335 Frames/sec 2722 Frames/sec
Extended instructions 47B Matrices/sec 58.2B Matrices/sec
Sources: PassMark [3], [4] โ€“ 5997 & 680 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core Ultra 9 275HX
359.87
Ryzen 9 9955HX +50%
539.16

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 35.3 PPW 27.9 PPW
Geekbench 6 Multi / Watt 371.8 PPW 259.3 PPW
Passmark CPU Mark / Watt 1013.7 PPW 750.7 PPW
Blender / Watt 6.54 PPW 7.19 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core Ultra 9 275HX
DateBenchmarkResult
๐Ÿ“˜ 2026-07-04 (dante)Cinebench 2024133 / 2062
๐Ÿ“˜ 2026-07-04 (dante)Cinebench 20260 / 0
๐Ÿ“˜ 2026-05-04 (Sujan)Cinebench 2024139 / 2318
๐Ÿ“˜ 2026-05-03 (ToadyBoi)Cinebench 2024139 / 2290
๐Ÿ“˜ 2026-04-10 (itsved4nt)Cinebench 2026500 / 7832
Add View all (23)
AMD Ryzen 9 9955HX
DateBenchmarkResult
๐Ÿ“˜ 2026-06-21 (Tino)Cinebench 2026717 / 8163
๐Ÿ“˜ 2026-04-26 (Runzliger-Bert)Cinebench 2024128 / 2058
๐Ÿ“˜ 2025-06-08 (Thebakedging)Cinebench 2024134 / 2091
Add View all (3)

Specifications

Full technical specification of Intel Core Ultra 9 275HX and AMD Ryzen 9 9955HX

General

Vendor Intel Amd
Released January 6, 2025 January 7, 2025
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Arrow Lake Zen 5 (Fire Range)
Model number 275HX 9955HX
Integrated GPU Arc Graphics (4-Cores) Radeon 610M
Rival Equivalent - AMD Ryzen 9 9850HX - Intel Core Ultra 9 285HX
Intel CPU rating (#18th place)

CPU

Performance Cores
P-Cores 8 16
P-Threads 8 32
Base Frequency (P) 2.7 GHz 2.5 GHz
Turbo Boost Frequency (P) 5.4 GHz 5.4 GHz
Efficient Cores
E-Cores 16 -
E-Threads 16 -
Base Frequency (E) 2.1 GHz -
Turbo Boost Frequency (E) 4.6 GHz -
Total
Total Cores 24 16
Total Threads 24 32
Bus Frequency 100 MHz 100 MHz
Multiplier 27x 25x
L1 Cache 192K (per core) 80K (per core)
L2 Cache 3MB (per core) 1MB (per core)
L3 Cache 36MB (shared) 64MB (shared)
Unlocked Multiplier Yes Yes

Package

Fabrication Process 3 nm 4 nm
TDP (PL1) 45-55 W (configurable) 55-75 W (configurable)
Max. Boost TDP (PL2) 160 W 101 W
Socket FCBGA-2114 FL1
Peak Temperature 105ยฐC 100ยฐC
Laptop processors ranking (25th and 17th place)

iGPU

Integrated Graphics Arc Graphics (4-Cores) Radeon 610M
GPU Base Clock 300 MHz 400 MHz
GPU Boost Clock 1900 MHz 2200 MHz
Shading Units 512 128
TMUs 32 8
ROPs 16 4
Execution Units 64 2
TGP 14 W 15 W
iGPU FLOPS
Core Ultra 9 275HX +217%
1.9 TFLOPS
Ryzen 9 9955HX
0.6 TFLOPS
More info: Radeon 610M compared to Arc iGPU (4-Cores)

Memory Support

Memory Types - DDR5-6400 - DDR5-5600
Max. Memory Size 256 GB 96 GB
Memory Channels 2 2
Max. Memory Bandwidth 102.4 GB/s -
ECC Support No Yes

Misc

Official Site Intel Core Ultra 9 275HX official page AMD Ryzen 9 9955HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 24 28

Cast your vote

Choose between two processors
209 (34.5%)
397 (65.5%)
Total votes: 606

Competitors

1. AMD Ryzen 9 9955HX vs AMD Ryzen 9 8940HX
2. AMD Ryzen 9 9955HX vs Intel Core i9 14900HX (1)
3. AMD Ryzen 9 9955HX vs AMD Ryzen 9 9955HX3D
4. AMD Ryzen 9 9955HX vs AMD Ryzen 9 8945HS
5. AMD Ryzen 9 9955HX vs Intel Core Ultra 9 285HX
6. Intel Core Ultra 9 275HX vs Intel Core Ultra 9 285H
7. Intel Core Ultra 9 275HX vs AMD Ryzen 9 9955HX3D (6)
8. Intel Core Ultra 9 275HX vs Intel Core Ultra 9 285HX
9. Intel Core Ultra 9 275HX vs Intel Core Ultra 9 285K
10. Intel Core Ultra 9 275HX vs Intel Core Ultra 9 185H
Compare other CPUs (460+)

Comments

So which CPU will you choose: AMD Ryzen 9 9955HX or Intel Core Ultra 9 275HX?
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miguel_ovo6ix August 4, 2026 at 04:58 AM
The cache difference between them is crazy sure the 275hx has the edge in performance but that cache difference will reduce the drops in 1% lows making the 9955hx3d more smoother esp when streaming the game. Intel should really take learn something here and focus more on smoother performance and consistency than just brute force raw performance to close the gap
+1 Reply
Avatar
Bdog November 30, 2025 at 05:24 AM
I would go for the 275hx the jump in performance is not huge with the amd option as your gpu is usually the bigger bottleneck. If you run more than a 10 hours a week on battery the lower idle power draws on Intel are a huge win when it comes to battery life. For instance, students who take their laptops to class will greatly benefit as usually they are just sitting in class on a web browser or some other light task. Here the intel cpu will be sipping sub 15watts and the fans likely wonโ€™t even need to run. With the amd option on the other hand youโ€™re going to be pulling double in the same situation, fans will be going, and youโ€™ll struggle more trying to get through the day without plugging in the charger to top up which means more wear and tear on the battery. If you really want to double down on gaming performance you should just be looking at the x3d option in order to see more substantial gains. Regardless, your biggest bottleneck is usually still the gpu and vram. Intel wins this sector of the mobile market. The chips just have more range and allow your laptop to actually do laptop things.
+13 Reply
Avatar
frost November 30, 2025 at 07:22 PM
AMD is works great too actually. they both still sucks at battery. but amd might be had a slight advantage when on charger since its boost doesn't as high as intel. on battery it's doesn't really matter, intel often on Tau/PL2 even on battery when opening apps, both are high performance mobile cpu so its naturally draw more power, efficiency isn't it's selling point. but why would you use high performance dan thick laptops for college or school, just build yourself a pc and bring an ultrabook for campus its actually more makes sense. Gaming everywhere like they said is more like gaming whenever you found outlets.
+5 Reply
Avatar
Kei July 22, 2025 at 05:12 PM
I would pick the Ultra 9 275hx every single day! They both are pretty much equal in gaming; however, Intel is slightly weaker than AMD in scientific performance (best scenario 20%). BUT!! In terms of power efficiency: the AMD chip draws more power from the wall, like 20% more than Intel. (I don't think that would matter much). On battery, we already know both suck so hard! But Intel has more than a 100% edge over AMD, which is humongous! Since it's a laptop CPU, that means a lot to me! You may use the laptop occasionally without a charger, so that's something! Jarrod made a detailed comparison on both identical laptops! Please see for yourself!
+32 Reply
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haste December 3, 2025 at 12:22 PM
Intel has less performance cores, 16 efficiency and use 8 perfomance cores, risen has more uniform 16 performance cores
+13 Reply
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nik ms July 9, 2025 at 10:39 AM
AMD is good, but there are too many problems with iGPU. Won't recommend. Just Google Radeon 610M glitches. Has issues with WhatsApp and sometimes video playback.
+27 Reply
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Jan K March 6, 2025 at 12:04 PM
I would choose AMD Ryzen 9 9955HX or AMD Ryzen 9 9955HX3D, any time! iGPU is NOT relevant in this segment of CPUs
+124 Reply
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