NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce GTX 980MX
GPU Specs Compare
Graphics Card
Release Date
Sep 2014
Jun 2016
Generation
GeForce 600
GeForce 900M
Type
Desktop
Mobile
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
980 MHz
1050 MHz
Boost Clock
1032 MHz
1178 MHz
Memory Clock
1502 MHz
1500 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
192bit
256bit
Bandwidth
144.2GB/s
192.0GB/s
Render Config
Shading Units
960
1664
TMUs
80
104
ROPs
24
64
L1 Cache
16 KB (per SMX)
48 KB (per SMM)
L2 Cache
384 KB
2 MB
Theoretical Performance
Pixel Rate
20.64 GPixel/s
75.39 GPixel/s
Texture Rate
82.56 GTexel/s
122.5 GTexel/s
FP32 (float)
1.981 TFLOPS
3.920 TFLOPS
FP64 (double)
82.56 GFLOPS
122.5 GFLOPS
Graphics Processor
GPU Name
GK104
GM204
Architecture
Kepler
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
5.2 billion
Die Size
294 mm²
398 mm²
GPU Variant
-
N16E-GXX-A1
Board Design
TDP
140W
148W
Suggested PSU
300 W
-
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 (11_0)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.0
5.2
Shader Model
5.1
6.4