NVIDIA GeForce GTX 660 Rev. 2 vs AMD Radeon R9 M280X
GPU Specs Compare
Graphics Card
Release Date
Sep 2014
Feb 2015
Generation
GeForce 600
Gem System
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
980 MHz
900 MHz
Boost Clock
1032 MHz
1000 MHz
Memory Clock
1502 MHz
1375 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
128bit
Bandwidth
144.2GB/s
88.00GB/s
Render Config
Shading Units
960
896
TMUs
80
56
ROPs
24
16
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
384 KB
256 KB
Compute Units
-
14
Theoretical Performance
Pixel Rate
20.64 GPixel/s
16.00 GPixel/s
Texture Rate
82.56 GTexel/s
56.00 GTexel/s
FP32 (float)
1.981 TFLOPS
1.792 TFLOPS
FP64 (double)
82.56 GFLOPS
112.0 GFLOPS
Graphics Processor
GPU Name
GK104
Saturn
Architecture
Kepler
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
2.08 billion
Die Size
294 mm²
160 mm²
GPU Variant
-
Saturn XT(216-0843024)
Board Design
TDP
140W
Unknown
Suggested PSU
300 W
-
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Portable Device Dependent
Power Connectors
1x 6-pin
-
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.1
1.2.170
CUDA
3.0
-
Shader Model
5.1
6.5