AMD Ryzen 9 9900X vs Apple M3 Ultra
We compared two desktop CPUs: AMD Ryzen 9 9900X with 12 cores 4.4GHz and Apple M3 Ultra with 32 cores 4.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD Ryzen 9 9900X 's Advantages
Lower TDP (120W vs 140W)
Apple M3 Ultra 's Advantages
Released 9 months late
Higher specification of memory (6400 vs 5600)
Larger memory bandwidth (819.2GB/s vs 89.6GB/s)
Higher base frequency (4.5GHz vs 4.4GHz)
More modern manufacturing process (3nm vs 4nm)
Score
Benchmark
Geekbench 6 Single Core
AMD Ryzen 9 9900X
+2%
3342
Apple M3 Ultra
3247
Geekbench 6 Multi Core
AMD Ryzen 9 9900X
19527
Apple M3 Ultra
+43%
28107
General Parameters
Jun 2024
Release Date
Mar 2025
Amd
Manufacturer
Apple
Desktop
Type
Desktop
x86-64
Instruction Set
ARMv8
Zen 5 (Granite Ridge)
Core Architecture
Apple M3
AM5
Socket
Apple M-Socket
Radeon Graphics
Integrated Graphics
Apple M3 Ultra GPU (80-core)
Ryzen 9 (Zen 5 (Granite Ridge))
Generation
-
Package
-
Transistor Count
184 billions
4 nm
Manufacturing Process
3 nm
120 W
Power Consumption
140 W
95 °C
Peak Operating Temperature
100 °C
TSMC
Foundry
-
6 nm
I/O Process Size
-
CPU Performance
12
Performance Cores
24
24
Performance Core Threads
24
4.4 GHz
Performance Core Base Frequency
4.5 GHz
5.6 GHz
Performance Core Turbo Frequency
-
-
Efficiency Cores
8
-
Efficiency Core Threads
8
12
Total Core Count
32
24
Total Thread Count
32
100 MHz
Bus Frequency
-
44x
Multiplier
45
80 K per core
L1 Cache
-
1 MB per core
L2 Cache
-
64 MB shared
L3 Cache
-
Yes
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR5-5600
Memory Types
LPDDR5-6400
192 GB
Max Memory Size
512 GB
2
Max Memory Channels
8
89.6 GB/s
Max Memory Bandwidth
819.2 GB/s
Yes
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
MHz
GPU Base Frequency
-
2200 MHz
GPU Max Dynamic Frequency
-
-
Shader Units
10240
-
Texture Units
640
-
Raster Operation Units
320
2
Execution Units
1280
-
Power Consumption
140
