NVIDIA GeForce GTX 980 Mobile vs NVIDIA GeForce GTX 660 OEM
GPU · Specs Compare
Graphics Card
Release Date
Sep 2015
Aug 2012
Generation
GeForce 900M
GeForce 600
Type
Mobile
Desktop
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
1064 MHz
823 MHz
Boost Clock
1140 MHz
888 MHz
Memory Clock
1753 MHz
1400 MHz
Memory
Memory Size
8GB
1536MB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
192bit
Bandwidth
224.4GB/s
134.4GB/s
Render Config
Shading Units
2048
1152
TMUs
128
96
ROPs
64
24
L1 Cache
48 KB (per SMM)
16 KB (per SMX)
L2 Cache
2 MB
384 KB
Theoretical Performance
Pixel Rate
72.96 GPixel/s
21.31 GPixel/s
Texture Rate
145.9 GTexel/s
85.25 GTexel/s
FP32 (float)
4.669 TFLOPS
2.046 TFLOPS
FP64 (double)
145.9 GFLOPS
85.25 GFLOPS
Graphics Processor
GPU Name
GM204
GK104
GPU Variant
N16E-GXX-A1
GK104-200-KD-A2
Architecture
Maxwell 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5.2 billion
3.54 billion
Die Size
398 mm²
294 mm²
Board Design
TDP
Unknown
130W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin
Suggested PSU
—
300 W
Graphics Features
DirectX
12 (12_1)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.3
1.1
CUDA
5.2
3.0
Shader Model
6.7 (6.4)
5.1
Benchmark
3DMark Time Spy
—
1,194
3DMark Time Spy Extreme
—
260
▲ Specs Compare
Data sourced from official specifications and benchmark tests.