GeForce GTX 980 Mobile and GeForce GT 635M - video card comparison
GeForce GTX 980 Mobile
GeForce GT 635M
Architecture
Maxwell (2014−2018)
Fermi (2010−2014)
GPU code name
N16E-GXX
N13E-GE2
Market segment
Laptop
Laptop
Release date
September 2014
December 2011
Bus support
PCI Express 3.0
PCI Express 2.0
Interface
MXM-B (3.0)
PCIe 2.0 x16
SLI options
+
-
Boost clock speed
1216 MHz
753 MHz
Core clock speed
1064 MHz
Up to 675 MHz
CUDA cores
2048
Up to 144
Floating-point performance
4,358 gflops
253.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
5,200 million
1,170 million
Pipelines / CUDA cores
2048
144
Power consumption (TDP)
100-200 Watt
35 Watt
Texture fill rate
144 billion/sec
Up to 16.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
Up to 192bit
Memory clock speed
7.0 GB/s
1800 MHz
Memory bandwidth
224 GB/s
Up to 43.2 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
No outputs
Multi monitor support
4 displays
-
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
+
HDCP
+
+
Maximum VGA resolution
2048x1536
Up to 2048x1536
G-SYNC support
+
-
Audio input for HDMI
Internal
-
DirectX
12 (12_1)
12 API
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.5
4.5
Shader Model
6.4
5.1
Vulkan
1.1.126
N/A
3D Blu-Ray
-
+
BatteryBoost
+
-
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
+