Home GPU comparison Apple M3 Ultra GPU (80-core) and AMD Radeon RX 6900 XT - Which is better?

Apple M3 Ultra GPU (80-core) vs AMD Radeon RX 6900 XT

53 out 100
Apple M3 Ultra GPU (80-core)
VS
54 out 100
AMD Radeon RX 6900 XT
Apple M3 Ultra GPU (80-core)
AMD Radeon RX 6900 XT

Compared 2 processors: Apple M3 Ultra GPU (80-core), vs AMD Radeon RX 6900 XT. Below are specs, tests, pros and cons for each device

  1. Differences
  2. Review
  3. General
  4. Benchmarks
  5. Processor
  6. Memory
  7. Comments (0)

Review

Key Specs Apple M3 Ultra GPU (80-core) and AMD Radeon RX 6900 XT
Games
Performance in DirectX, OpenCL, Vulkan
AI/ML
AI workload testing
Professional Apps
3D modeling, video editing, rendering
Energy Efficiency
Power usage in various scenarios
NanoReview Score
Overall score by NanoReview

Tests & specs

Specs & test comparison
Processors:
M3 Ultra GPU (80-core)
vs
Radeon RX 6900 XT

Games

FPS Table
Game title
1080p (High)
1080p (Ultra)
1440p (Ultra)
4K (Ultra)
Forza Horizon 5
0
0
0
0
213
142
118
87
The Witcher 3
37
25
0
0
208
183
139
72
Counter-Strike 2
0
0
0
0
302
208
149
81
Far Cry 6
0
0
0
0
172
148
133
83
Hogwarts Legacy
0
0
0
0
130
105
83
46
COD Modern Warfare 3
0
0
0
0
183
177
130
84
Ghost of Tsushima
0
0
0
0
131
111
91
55
Cyberpunk 2077
0
0
0
0
148
129
87
42
Shadow of the Tomb Raider
0
0
0
0
225
205
156
82
Avg FPS
1080p Highn/a190
1080p Ultran/a156
1440p Ultran/a121
4K Ultran/a70
Deviationn/aLow

Benchmarks

CPU performance comparison across tasks
3DMark
Steel Nomad Lite Score
Apple M3 Ultra GPU (80-core)
17182
AMD Radeon RX 6900 XT
20263
Time Spyn/a20781
Solar Bayn/a86741
Port Royaln/a10519
Fire Striken/a57323
Night Raidn/a159759
Sources: 3DMark [AMD Radeon RX 6900 XT]
GeekBench v6
GB6 Compute Score
Apple M3 Ultra GPU (80-core)
147719
AMD Radeon RX 6900 XT
124121
Background Blur204.5 frames/s231.6 frames/s
Face Detection126 frames/s152.5 frames/s
Horizon Detection6.53 Gpix/sec4.26 Gpix/sec
Edge Detection10.7 Gpix/sec5.75 Gpix/sec
Gaussian Blur9.5 Gpix/sec5.87 Gpix/sec
Feature Matching1.05 Gpix/sec1.12 Gpix/sec
Stereo Matching560.3 Gpix/sec618.7 Gpix/sec
Particle Physics25267.8 fps17973.9 fps
APIOpenCLOpenCL
Sources: GeekBench v6 [Apple M3 Ultra GPU (80-core)], [AMD Radeon RX 6900 XT]
PassMark
PassMark Graphics
Apple M3 Ultra GPU (80-core)
n/a
AMD Radeon RX 6900 XT
26727
G2D Markn/a1051
DirectX 11n/a278 fps
DirectX 12n/a113 fps
GPU Computen/a14962 Ops/s
Sources: PassMark [AMD Radeon RX 6900 XT]
GFXBench 5
Aztec Ruins (High 4K)
Apple M3 Ultra GPU (80-core)
375.1 fps
AMD Radeon RX 6900 XT
305.2 fps
Aztec Ruins (Normal)831.5 fps1379.6 fps
Car Chase517.6 fps1317.5 fps
Manhattan 3.1.1 (1440p)1083.9 fps1205.3 fps
T-Rex3144.1 fps4360 fps
ALU 22765.4 fps6645 fps
Driver Overhead 2570.2 fps325.2 fps
APIMetalOpenGL
OSOS XWindows
Tessellationn/a3954.8
Sources: GFXBench 5 [Apple M3 Ultra GPU (80-core)], [AMD Radeon RX 6900 XT]
Geekbench 6 ML
GB6 ML Single Precision
Apple M3 Ultra GPU (80-core)
21356
AMD Radeon RX 6900 XT
n/a
GB6 ML Half Precision
Apple M3 Ultra GPU (80-core)
23530
AMD Radeon RX 6900 XT
n/a
GB6 ML Quantized
Apple M3 Ultra GPU (80-core)
21706
AMD Radeon RX 6900 XT
n/a
Image Classification (SP)8094n/a
Image Segmentation (HP)24595n/a
Horizon Detection25190n/a
Face Detection (HP)38337n/a
Pose Estimation (Q)111021n/a
Text Classification (SP)2786n/a
Machine Translation (HP)4339n/a
Object Detection (SP)7668n/a
Depth Estimation (Q)37488n/a
Style Transfer (SP)244483n/a
FrameworkCore MLn/a
BackendGPUn/a
Sources: GeekBench v6 [Apple M3 Ultra GPU (80-core)]

Blender

Real-world 3D modeling test
Blender GPU
Apple M3 Ultra GPU (80-core)
7492.44
AMD Radeon RX 6900 XT
n/a

Tech Specs

Specs & test comparison

General Info

Manufacturer Apple AMD
Build Integrated Discrete
Announced March, 5, 2025 December, 8, 2020
Form Factor PC use PC use
Use case Professional Gaming
Segment High-end High-end
Architecture Apple M GPU RDNA 2.0
Codename Custom Navi 21
Price n/a 999

GPU

GPU Frequency n/a 1825 MHz
Boost GPU Frequency n/a 2250 MHz
Shader Units 10240 5120
TMUs 640 320
ROPs 320 128
Execution Units 1280 n/a
Ray Tracing Cores n/a 80
L1 cache n/a 128 KB/core
L2 cache n/a 4000 KB/core
Instructions per Clock 2 IPC 2 IPC

Performance

Pixel Fill Rate n/a 288 Gpix/sec
Texture Fill Rate n/a 720 GTex/s
FLOPS n/a 23 TFLOPS

Process

Interface Custom PCIe 4.0 x16
TGP 140 W 300 W
Process TSMC TSMC
Process tech. 3 nm 7 nm
Max temperature 100 °C n/a
Transistor Size n/a 520 mm²
Transistor count 184 billion 26 billion
Transistor density n/a 50 MTr/mm²

Memory

Interface System Shared GDDR6
Memory Frequency 6400 MHz 2000 MHz
Bus 1024 bit 256 bit
ECC support No No
Effective Memory Speed n/a 16000 MB/s
Memory Size n/a 16 GB
Max Throughput
Apple M3 Ultra GPU (80-core)
819.3 GB/s
AMD Radeon RX 6900 XT
512 GB/s

API

DirectX n/a 12
Vulkan n/a 1.3
OpenGL n/a 4.6
DisplayPort n/a 1.4a
Ray Tracing Yes Yes
DLSS No No

Results

No clear favorite identified yet; updates may follow as new data arrives.

Survey

Which GPU would you pick?
20 (46.51%)
23 (53.49%)
Total Votes: 43

User comments

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