GeForce GTX 980M and GeForce GTX 660 - video card comparison
Passmark - benchmark score GeForce GTX 980M vs GeForce GTX 660
GeForce GTX 980M
7565
GeForce GTX 660
4119
GeForce GTX 980M
GeForce GTX 660
Architecture
Maxwell (2014−2018)
Kepler (2012−2018)
GPU code name
GM204
GK106
Market segment
Laptop
Desktop
Release date
October 2014
September 2012
Bus support
PCI Express 3.0
PCI Express 3.0
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
One 6-pin
SLI options
+
+
Boost clock speed
1127 MHz
1033 MHz
Core clock speed
1038 MHz
980 MHz
CUDA cores
1536
960
Floating-point performance
3,462 gflops
1,981 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,200 million
2,540 million
Pipelines / CUDA cores
1536
960
Power consumption (TDP)
unknown
140 Watt
Texture fill rate
51.84
78.4 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
192-bit GDDR5
Memory clock speed
2500 MHz
6.0 GB/s
Memory bandwidth
160 GB/s
144.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
Multi monitor support
-
4 displays
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
G-SYNC support
+
-
Audio input for HDMI
-
Internal
DirectX
12 (12_1)
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.2
OpenGL
4.5
4.3
Shader Model
6.4
5.1
Vulkan
1.1.126
1.1.126
3D Blu-Ray
-
+
3D Gaming
-
+
3D Vision
-
+
Ansel
+
-
BatteryBoost
+
-
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-