AMD Radeon Instinct MI455X vs NVIDIA TITAN Ada
GPU Specs Compare
Graphics Card
Release Date
Jul 2026
Unknown
Generation
Radeon Instinct
GeForce 40
Type
Desktop
Desktop
Bus Interface
PCIe 6.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1000 MHz
2235 MHz
Boost Clock
2400 MHz
2520 MHz
Memory Clock
1900 MHz
1500 MHz
Memory
Memory Size
432GB
48GB
Memory Type
HBM4
GDDR6X
Memory Bus
24576bit
384bit
Bandwidth
23.3TB/s
1.15TB/s
Render Config
Compute Units
256
-
Shading Units
32768
18432
TMUs
1024
576
ROPs
0
192
L1 Cache
32 KB (per CU)
128 KB (per SM)
L2 Cache
192 MB
96 MB
SM Count
-
144
Tensor Cores
-
576
RT Cores
-
144
Theoretical Performance
Pixel Rate
0 MPixel/s
483.8 GPixel/s
Texture Rate
2457.6 GTexel/s
1452 GTexel/s
FP16 (half)
157.3 TFLOPS
92.90 TFLOPS
FP32 (float)
157.3 TFLOPS
92.90 TFLOPS
FP64 (double)
2.458 TFLOPS
1452 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
-
AD102-450-A1
Board Design
TDP
2300W
800W
Suggested PSU
2700 W
1200 W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
2x 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