AMD Radeon Instinct MI455X vs NVIDIA Tesla K40st
GPU · Specs Compare
Graphics Card
Release Date
Jul 2026
Nov 2013
Generation
Radeon Instinct
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 6.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1000 MHz
—
Boost Clock
2400 MHz
—
Memory Clock
1900 MHz
1502 MHz
Memory
Memory Size
432GB
12GB
Memory Type
HBM4
GDDR5
Memory Bus
24576bit
384bit
Bandwidth
23.3TB/s
288.4GB/s
Render Config
Compute Units
256
—
Shading Units
32768
2880
TMUs
1024
240
ROPs
0
48
L1 Cache
32 KB (per CU)
16 KB (per SMX)
L2 Cache
192 MB
1536 KB
Theoretical Performance
Pixel Rate
0 MPixel/s
34.50 GPixel/s
Texture Rate
2457.6 GTexel/s
138.0 GTexel/s
FP16 (half)
157.3 TFLOPS
—
FP32 (float)
157.3 TFLOPS
3.312 TFLOPS
FP64 (double)
2.458 TFLOPS
1104 GFLOPS
Graphics Processor
GPU Name
MI450 256CU
GK110B
Architecture
CDNA 5.0
Kepler
Foundry
TSMC
TSMC
Process Size
2 nm
28 nm
Transistors
320 billion
7.08 billion
Die Size
Unknown
561 mm²
Board Design
TDP
2300W
245W
Suggested PSU
2700 W
550 W
Outputs
No outputs
No outputs
Power Connectors
None
—
Graphics Features
DirectX
N/A
12 (11_1)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.1
Shader Model
N/A
5.1
CUDA
—
3.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.