AMD Radeon Instinct MI455X vs NVIDIA GeForce GTX 680M
GPU · Specs Compare
Graphics Card
Release Date
Jul 2026
Jun 2012
Generation
Radeon Instinct
GeForce 600M
Type
Desktop
Mobile
Bus Interface
PCIe 6.0 x16
MXM-B (3.0)
Clock Speeds
Base Clock
1000 MHz
719 MHz
Boost Clock
2400 MHz
758 MHz
Memory Clock
1900 MHz
900 MHz
Memory
Memory Size
432GB
4GB
Memory Type
HBM4
GDDR5
Memory Bus
24576bit
256bit
Bandwidth
23.3TB/s
115.2GB/s
Render Config
Compute Units
256
—
Shading Units
32768
1344
TMUs
1024
112
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
21.22 GPixel/s
Texture Rate
2457.6 GTexel/s
84.90 GTexel/s
FP16 (half)
157.3 TFLOPS
—
FP32 (float)
157.3 TFLOPS
2.038 TFLOPS
FP64 (double)
2.458 TFLOPS
84.90 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
GPU Variant
—
N13E-GTX-A2
Board Design
TDP
2300W
100W
Suggested PSU
2700 W
—
Outputs
No outputs
No outputs
Power Connectors
None
None
Graphics Features
DirectX
N/A
12 (11_0)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.1
Shader Model
N/A
5.1
CUDA
—
3.0
Benchmark
Blender
—
189
▲ Specs Compare
Data sourced from official specifications and benchmark tests.