AMD Ryzen Embedded 7645 vs Apple M4 Ultra
We compared two desktop CPUs: AMD Ryzen Embedded 7645 with 6 cores 3.8GHz and Apple M4 Ultra with 32 cores 4.52GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Apple M4 Ultra 's Advantages
Released 1 years and 6 months late
Integrated graphics card
Higher specification of memory (8533 vs 5200)
Higher base frequency (4.52GHz vs 3.8GHz)
More modern manufacturing process (3nm vs 5nm)
Score
General Parameters
Nov 2023
Release Date
May 2025
AMD
Manufacturer
Apple
Desktop
Type
Desktop
-
Instruction Set
ARMv9
Raphael
Core Architecture
Apple M4
AMD Socket AM5
Socket
Apple M-Socket
Radeon Graphics
Integrated Graphics
Apple M4 Ultra GPU (80-core)
Ryzen Embedded (Zen 4 (Raphael))
Generation
-
Package
6.57 billions
Transistor Count
-
5 nm
Manufacturing Process
3 nm
65 W
Power Consumption
-
95°C
Peak Operating Temperature
100 °C
TSMC
Foundry
-
71 mm²
Die Size
-
6 nm
I/O Process Size
-
122 mm²
I/O Die Size
-
CPU Performance
-
Performance Cores
24
-
Performance Core Threads
24
3.8 GHz
Performance Core Base Frequency
4.52 GHz
5.1 GHz
Performance Core Turbo Frequency
-
-
Efficiency Cores
8
-
Efficiency Core Threads
8
-
Efficiency Core Base Frequency
2.89 GHz
6
Total Core Count
32
12
Total Thread Count
32
100 MHz
Bus Frequency
-
38.0
Multiplier
45
64 KB per core
L1 Cache
-
1 MB per core
L2 Cache
-
32 MB shared
L3 Cache
-
No
Unlocked Multiplier
No
1
SMP
-
Memory Parameters
DDR5-5200
Memory Types
LPDDR5X-8533
-
Max Memory Size
192 GB
2
Max Memory Channels
8
Yes
ECC Memory Support
No
Graphics Card Parameters
-
Integrated Graphics
true
-
GPU Base Frequency
500 MHz
-
GPU Max Dynamic Frequency
1800 MHz
-
Shader Units
10240
-
Texture Units
640
-
Raster Operation Units
320
-
Execution Units
1280
-
Power Consumption
120
-
Graphics Performance
36.9 TFLOPS
Miscellaneous
5
PCIe Version
-
24
PCIe Lanes
-
