AMD Radeon Instinct MI455X vs NVIDIA Quadro K5000 Mac Edition
GPU Specs Compare
Graphics Card
Release Date
Jul 2026
Aug 2012
Generation
Radeon Instinct
Quadro Kepler
Type
Desktop
Professional
Bus Interface
PCIe 6.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
1000 MHz
706 MHz
Boost Clock
2400 MHz
706 MHz
Memory Clock
1900 MHz
1350 MHz
Memory
Memory Size
432GB
4GB
Memory Type
HBM4
GDDR5
Memory Bus
24576bit
256bit
Bandwidth
23.3TB/s
172.8GB/s
Render Config
Compute Units
256
-
Shading Units
32768
1536
TMUs
1024
128
ROPs
0
32
L1 Cache
32 KB (per CU)
16 KB (per SMX)
L2 Cache
192 MB
512 KB
Theoretical Performance
Pixel Rate
0 MPixel/s
22.59 GPixel/s
Texture Rate
2457.6 GTexel/s
90.37 GTexel/s
FP16 (half)
157.3 TFLOPS
-
FP32 (float)
157.3 TFLOPS
2.169 TFLOPS
FP64 (double)
2.458 TFLOPS
90.37 GFLOPS
Graphics Processor
GPU Name
MI450 256CU
GK104
Architecture
CDNA 5.0
Kepler
Foundry
TSMC
TSMC
Process Size
2 nm
28 nm
Transistors
320 billion
3.54 billion
Die Size
Unknown
294 mm²
Board Design
TDP
2300W
122W
Suggested PSU
2700 W
300 W
Outputs
No outputs
2x DVI2x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Graphics Features
DirectX
N/A
12 (11_0)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.2.175
Shader Model
N/A
6.5 (5.1)
CUDA
-
3.0