Intel Core i9 12900H vs AMD Ryzen 9 6900HX

We compared two laptop CPUs: the 2.5 GHz Intel Core i9 12900H with 14-cores against the 3.3 GHz AMD Ryzen 9 6900HX with 8-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


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 electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 6900HX and 12900H
Advantages of Intel Core i9 12900H
  • Has 6 more physical cores
  • Has 8192 KB larger L3 cache size
  • 16% faster in a single-core Geekbench v5 test - 1847 vs 1589 points
  • 2% higher Turbo Boost frequency (5 GHz vs 4.9 GHz)
Advantages of AMD Ryzen 9 6900HX
  • Unlocked multiplier
  • More modern manufacturing process – 6 versus 10 nanometers


Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)


Full technical specification of Intel Core i9 12900H and AMD Ryzen 9 6900HX


Vendor Intel AMD
Released January 4, 2022 January 4, 2022
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Alder Lake Zen 3+ (Rembrandt)
Model number i9-12900H -
Integrated GPU Iris Xe Graphics (96EU) Radeon 680M


Performance Cores
P-Cores 6 8
P-Threads 12 16
Base Frequency (P) 2.5 GHz 3.3 GHz
Turbo Boost Frequency (P) 5 GHz 4.9 GHz
Efficient Cores
E-Cores 8 -
E-Threads 8 -
Base Frequency (E) 1.8 GHz -
Turbo Boost Frequency (E) 3.8 GHz -
Total Cores 14 8
Total Threads 20 16
Bus Frequency 100 MHz 100 MHz
Multiplier 25x 33x
L1 Cache 80K (per core) 64K (per core)
L2 Cache 1280K (per core) 512K (per core)
L3 Cache 24MB (shared) 16MB (shared)
Unlocked Multiplier No Yes


Fabrication process 10 nm 6 nm
Socket BGA-1744 FP7
TDP 35-45 W (configurable) 45 W
Max. Boost TDP 115 W -
Peak temperature 100°C 95°C


Integrated Graphics Intel Iris Xe Graphics (96EU) AMD Radeon 680M
GPU Base Clock 300 MHz 2000 MHz
GPU Boost Clock 1450 MHz 2400 MHz
Shading Units 768 768
TMUs 48 48
ROPs 24 32
Execution Units 96 12
TGP 15 W 15 W
3.686 TFLOPS

Memory Support

Memory types DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267 DDR5-4800, LPDDR5-6400
Memory Size 64 GB 64 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth - 76.8 GB/s
ECC Support No No


Official site Intel Core i9 12900H official page AMD Ryzen 9 6900HX official page
PCI Express Version 4.0 4.0
PCI Express Lanes 28 20

Cast your vote

Choose between two processors
392 (55.8%)
310 (44.2%)
Total votes: 702


So which CPU will you choose: AMD Ryzen 9 6900HX or Intel Core i9 12900H?
Amadeus 20 September 2022 07:28
I choose intel because I am not doing any task which pushes CPU to it's extreme limits Just want to do regular gaming and streaming and a bit of video editing.
+3 Reply
SuperLambda 08 March 2022 10:58
I9 is an old 10nm fabrication process while R9 is 6nm. I9 uses 140-150w during peak while R9 is 40-50w. This means in the normal situation (Your laptop PC won't always use 140-150w on CPU, actually it rarely goes up to 50w), actually in most situations, R9 performs much better than I9. At the same point, I9 is way more expensive than R9. I choose AMD, as always. AND YES! Come on man, I mean Intel should just quit advertising itself, instead, just focus on your chips. Can you just accept TSMC outsourcing? Everyone knows Taiwan TSMC is number 1.
+46 Reply
Thanh JT 23 July 2022 11:00
but there I see 35-45W, ya, something is not clear on this website =]
0 Reply
anonymous 28 October 2022 00:43
See my comment below, Intel outperforms AMD at 45 W and above, not 100 W. The i9 is more expensive because it is significantly more powerful. In addition, Intel 10 nm has the same transistor density as TSMC 7 nm, which is the main factor in determining power consumption. Intel just boosts up too high on battery which gives them bad battery life, but you can use programs like Throttlestop to stop this and get them much closer in battery life to Ryzen CPUs.
+4 Reply
Zura 14 November 2022 23:06
anonymous, Intel/AMD CPUs don't go beyond 45w when the GPU is active (while playing games).
0 Reply
Ivan K 07 March 2022 16:57
While i9 outperforms r9, it's also viable to mention that i9 tends to draw about 140-150W during peak, while r9 is at 40-50w. Also, median consumption is significantly higher. So consider this to be a mobile processor, id say it's highly significant how much juice it requires to perform like this, regardless of what these paper values show. That results in shorter battery life, or, if restricted consumption, lower performance from i9 than r9. So you should take into consideration whether you'll be using the laptop more on battery or plugged in. Cheers.
+26 Reply
anonymous 28 October 2022 00:39
There is only one laptop that can even handle 140 W on the CPU (MSI Titan GT77). At 65 W with an i7-12700H, I am still getting a better multi-core score than the Ryzen 9 6900 HX can get at 100W. You can look at the power scaling graphs by Jarrod's Tech - the i7-12700H outperforms the Ryzen 7 6800H at 45W and above - it certainly does not need to go into the 100s. Since both the i9-12900H and Ryzen 9 6900HX are only a fractional step up in clock speed alone from their 7 counterparts but are otherwise identical, the power scaling would be the same here. You can also use the Disable Turbo feature in Throttlestop to significantly increase battery life without a huge drop in performance.
0 Reply
Shivu 04 February 2022 03:53
Ryzen can be better if it comes for a lower price, if AMD managed to provide Ryzen for a lower price, it can be favorable by many.
+31 Reply