Apple M2 Ultra (76-GPU) vs AMD Ryzen 9 5900HX

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CPU comparison with benchmarks


Apple M2 Ultra (76-GPU) CPU1 vs CPU2 AMD Ryzen 9 5900HX
Apple M2 Ultra (76-GPU) AMD Ryzen 9 5900HX

CPU comparison

In this CPU comparison, we compare the Apple M2 Ultra (76-GPU) and the AMD Ryzen 9 5900HX and use benchmarks to check which processor is faster.

We compare the Apple M2 Ultra (76-GPU) 24 core processor released in Q2/2023 with the AMD Ryzen 9 5900HX which has 8 CPU cores and was introduced in Q2/2021.
Apple M series (25) Family AMD Ryzen 9 (35)
Apple M2 (8) CPU group AMD Ryzen 5000H (11)
2 Generation 4
M2 Architecture Cezanne (Zen 3)
Mobile Segment Mobile
Apple M1 Ultra (64-GPU) Predecessor --
-- Successor AMD Ryzen 9 6900HX

CPU Cores and Base Frequency

The Apple M2 Ultra (76-GPU) is a 24 core processor with a clock frequency of 0.66 GHz (3.50 GHz). The processor can compute 24 threads at the same time. The AMD Ryzen 9 5900HX clocks with 3.30 GHz (4.60 GHz), has 8 CPU cores and can calculate 16 threads in parallel.

Apple M2 Ultra (76-GPU) Characteristic AMD Ryzen 9 5900HX
24 Cores 8
24 Threads 16
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading Yes
No Overclocking ? No
0.66 GHz (3.50 GHz)
16x Avalanche
A-Core 3.30 GHz (4.60 GHz)
0.60 GHz (2.42 GHz)
8x Blizzard
B-Core --

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Apple M2 Ultra (76-GPU) Characteristic AMD Ryzen 9 5900HX
Apple Neural Engine AI hardware --
32 Neural cores @ 31.6 TOPS AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

Apple M2 Ultra (76 Core) GPU AMD Radeon RX Vega 8 (Renoir)
0.45 GHz GPU frequency 0.40 GHz
1.40 GHz GPU (Turbo) 1.90 GHz
2 GPU Generation 9
5 nm Technology 7 nm
8 Max. displays 3
1216 Compute units 8
9728 Shader 512
No Hardware Raytracing No
No Frame Generation No
192 GB Max. GPU Memory 8 GB
-- DirectX Version 12

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Apple M2 Ultra (76 Core) GPU AMD Radeon RX Vega 8 (Renoir)
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode Codec VP8 Decode / Encode
No Codec AV1 No
Decode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 192 GB of memory in a maximum of 8 memory channels is supported by the Apple M2 Ultra (76-GPU), while the AMD Ryzen 9 5900HX supports a maximum of 64 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled.

Apple M2 Ultra (76-GPU) Characteristic AMD Ryzen 9 5900HX
LPDDR5-6400 Memory LPDDR4-4266, DDR4-3200
192 GB Max. Memory 64 GB
8 (Octa Channel) Memory channels 2 (Dual Channel)
819.1 GB/s Max. Bandwidth 51.2 GB/s
No ECC No
72.00 MB L2 Cache 4.00 MB
-- L3 Cache 16.00 MB
4.0 PCIe version 3.0
64 PCIe lanes 12
126.0 GB/s PCIe Bandwidth 11.8 GB/s

Thermal Management

The Apple M2 Ultra (76-GPU) has a TDP of 80 W. The TDP of the AMD Ryzen 9 5900HX is 45 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Apple M2 Ultra (76-GPU) Characteristic AMD Ryzen 9 5900HX
80 W TDP (PL1 / PBP) 45 W
-- TDP (PL2) --
-- TDP up 54 W
-- TDP down 35 W
100 °C Tjunction max. 105 °C

Technical details

The Apple M2 Ultra (76-GPU) has 72.00 MB cache and is manufactured in 5 nm. The cache of AMD Ryzen 9 5900HX is at 20.00 MB. The processor is manufactured in 7 nm.

Apple M2 Ultra (76-GPU) Characteristic AMD Ryzen 9 5900HX
5 nm Technology 7 nm
Chiplet Chip design Chiplet
Armv8.5-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
Rosetta 2 x86-Emulation ISA extensions SSE4a, SSE4.1, SSE4.2, AVX2, FMA3
-- Socket FP6
Apple Virtualization Framework Virtualization AMD-V, SVM
Yes AES-NI Yes
macOS, iPadOS Operating systems Windows 10, Windows 11, Linux
Q2/2023 Release date Q2/2021
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Apple M2 Ultra (76-GPU) to help other visitors make their purchasing decisions. The average rating is 4.9 stars (131 ratings). Rate now:
Here you can rate the AMD Ryzen 9 5900HX to help other visitors make their purchasing decisions. The average rating is 5.0 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
Apple M2 Ultra (76-GPU) (100%)
AMD Ryzen 9 5900HX (77%)
⌀ Multi core performance in 5 CPU benchmarks
Apple M2 Ultra (76-GPU) (100%)
AMD Ryzen 9 5900HX (38%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
126 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.60 GHz
86 (68%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
1918 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.60 GHz
578 (30%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
1695 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.60 GHz
1478 (87%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
28570 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
13955 (49%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
1940 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.60 GHz
1510 (78%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
27860 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
8432 (30%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
2689 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.60 GHz
1992 (74%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
21450 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
7255 (34%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
Apple M2 Ultra (76 Core) @ 1.40 GHz
26980 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
AMD Radeon RX Vega 8 (Renoir) @ 1.90 GHz
1946 (7%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
48560 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
22815 (47%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.60 GHz
578 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
5474 (100%)

Blender 3.1 Benchmark

In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
183 (100%)

Blender 2.81 (bmw27)

Blender is a free 3D graphics software for rendering (creating) 3D bodies, which can also be textured and animated in the software. The Blender benchmark creates predefined scenes and measures the time (s) required for the entire scene. The shorter the time required, the better. We selected bmw27 as the benchmark scene.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
174 (100%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 3.50 GHz
0 (0%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 4.20 GHz
596 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 0.66 GHz
0 (0%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 3.30 GHz
5692 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
28,570 CB R23 MC @ 80 W
357 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
3.30 GHz
0 (0%)

Performance for Artificial Intelligence (AI) and Machine Learning (ML)

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
Apple M2 Ultra (76-GPU) Apple M2 Ultra (76-GPU)
24C 24T @ 0.66 GHz
31.6 (100%)
AMD Ryzen 9 5900HX AMD Ryzen 9 5900HX
8C 16T @ 3.30 GHz
0 (0%)

Devices using this processor

Apple M2 Ultra (76-GPU) AMD Ryzen 9 5900HX
Unknown Unknown

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