NVIDIA Tesla K20Xm vs AMD Radeon Instinct MI355X
GPU Specs Compare
Graphics Card
Release Date
Nov 2012
Jun 2025
Generation
Tesla
Radeon Instinct
Type
Professional
Professional
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Memory Clock
1300 MHz
2000 MHz
Base Clock
-
1000 MHz
Boost Clock
-
2400 MHz
Memory
Memory Size
6GB
288GB
Memory Type
GDDR5
HBM3e
Memory Bus
384bit
8192bit
Bandwidth
249.6GB/s
8.19TB/s
Render Config
Shading Units
2688
16384
TMUs
224
1024
ROPs
48
0
L1 Cache
16 KB (per SMX)
32 KB (per CU)
L2 Cache
1536 KB
32 MB
Compute Units
-
256
Tensor Cores
-
1216
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
40.99 GPixel/s
0 MPixel/s
Texture Rate
164.0 GTexel/s
2457.6 GTexel/s
FP32 (float)
3.935 TFLOPS
78.64 TFLOPS
FP64 (double)
1312 GFLOPS
39.32 TFLOPS
FP16 (half)
-
78.64 TFLOPS
Graphics Processor
GPU Name
GK110
MI350 256CU
Architecture
Kepler
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
28 nm
3 nm
Transistors
7.08 billion
185 billion
Die Size
561 mm²
Unknown
Board Design
TDP
235W
1400W
Suggested PSU
550 W
1800 W
Outputs
No outputs
No outputs
Power Connectors
-
None
Graphics Features
DirectX
12 (11_0)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.1
N/A
CUDA
3.5
-
Shader Model
5.1
N/A