NVIDIA GeForce GTX 660 OEM vs AMD Radeon Instinct MI355X
GPU Specs Compare
Graphics Card
Release Date
Aug 2012
Jun 2025
Generation
GeForce 600
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
823 MHz
1000 MHz
Boost Clock
888 MHz
2400 MHz
Memory Clock
1400 MHz
2000 MHz
Memory
Memory Size
1536MB
288GB
Memory Type
GDDR5
HBM3e
Memory Bus
192bit
8192bit
Bandwidth
134.4GB/s
8.19TB/s
Render Config
Shading Units
1152
16384
TMUs
96
1024
ROPs
24
0
L1 Cache
16 KB (per SMX)
32 KB (per CU)
L2 Cache
384 KB
32 MB
Compute Units
-
256
Tensor Cores
-
1216
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
21.31 GPixel/s
0 MPixel/s
Texture Rate
85.25 GTexel/s
2457.6 GTexel/s
FP32 (float)
2.046 TFLOPS
78.64 TFLOPS
FP64 (double)
85.25 GFLOPS
39.32 TFLOPS
FP16 (half)
-
78.64 TFLOPS
Graphics Processor
GPU Name
GK104
MI350 256CU
GPU Variant
GK104-200-KD-A2
-
Architecture
Kepler
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
28 nm
3 nm
Transistors
3.54 billion
185 billion
Die Size
294 mm²
Unknown
Board Design
TDP
130W
1400W
Suggested PSU
300 W
1800 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
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
3.0
-
Shader Model
5.1
N/A
📊 Benchmark
3DMark Time Spy
1,194
-
3DMark Time Spy Extreme
260
-