AMD Radeon Instinct MI455X vs NVIDIA RTX 6000 Ada
GPU · Specs Compare
Graphics Card
Release Date
Jul 2026
Dec 2022
Generation
Radeon Instinct
Quadro Ada
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1000 MHz
915 MHz
Boost Clock
2400 MHz
2505 MHz
Memory Clock
1900 MHz
2500 MHz
Memory
Memory Size
432GB
48GB
Memory Type
HBM4
GDDR6
Memory Bus
24576bit
384bit
Bandwidth
23.3TB/s
960.0GB/s
Render Config
Compute Units
256
—
Shading Units
32768
18176
TMUs
1024
568
ROPs
0
192
L1 Cache
32 KB (per CU)
128 KB (per SM)
L2 Cache
192 MB
96 MB
SM Count
—
142
Tensor Cores
—
568
RT Cores
—
142
Theoretical Performance
Pixel Rate
0 MPixel/s
481.0 GPixel/s
Texture Rate
2457.6 GTexel/s
1423 GTexel/s
FP16 (half)
157.3 TFLOPS
91.06 TFLOPS
FP32 (float)
157.3 TFLOPS
91.06 TFLOPS
FP64 (double)
2.458 TFLOPS
1423 GFLOPS
Graphics Processor
GPU Name
MI450 256CU
AD102
Architecture
CDNA 5.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
2 nm
5 nm
Transistors
320 billion
76.3 billion
Die Size
Unknown
609 mm²
GPU Variant
—
AD102
Board Design
TDP
2300W
300W
Suggested PSU
2700 W
700 W
Outputs
No outputs
4x DisplayPort 1.4a
Power Connectors
None
1x 16-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
Shader Model
N/A
6.8
CUDA
—
8.9
Benchmark
3DMark Time Spy
—
26,240
3DMark Time Spy Extreme
—
12,629
3DMark Speed Way
—
8,028
Battlefield 5 1080p
—
200
▲ Specs Compare
Data sourced from official specifications and benchmark tests.