AMD Radeon PRO W7900D vs NVIDIA GeForce GTX 660 Rev. 2
GPU · Specs Compare
Graphics Card
Release Date
Nov 2025
Sep 2014
Generation
Radeon Pro Navi
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1327 MHz
980 MHz
Boost Clock
2156 MHz
1032 MHz
Memory Clock
2250 MHz
1502 MHz
Memory
Memory Size
48GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
384bit
192bit
Bandwidth
864.0GB/s
144.2GB/s
Render Config
Compute Units
96
—
Shading Units
6144
960
TMUs
384
80
ROPs
192
24
RT Cores
96
—
L1 Cache
256 KB per Array
16 KB (per SMX)
L2 Cache
6 MB
384 KB
L3 Cache
96 MB
—
Theoretical Performance
Pixel Rate
414.0 GPixel/s
20.64 GPixel/s
Texture Rate
827.9 GTexel/s
82.56 GTexel/s
FP16 (half)
106.0 TFLOPS
—
FP32 (float)
52.99 TFLOPS
1.981 TFLOPS
FP64 (double)
1.656 TFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
Navi 31
GK104
GPU Variant
Navi 31
—
Architecture
RDNA 3.0
Kepler
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
57.7 billion
3.54 billion
Die Size
529 mm²
294 mm²
Board Design
TDP
295W
140W
Suggested PSU
600 W
300 W
Outputs
3x DisplayPort 2.11x mini-DisplayPort 2.1
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 8-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.2
3.0
Vulkan
1.4
1.1
Shader Model
6.9
5.1
CUDA
—
3.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.