GeForce GTX 980 Mobile and GeForce GTX 850M - video card comparison
GeForce GTX 980 Mobile
GeForce GTX 850M
Architecture
Maxwell (2014−2018)
Maxwell (2014−2018)
GPU code name
N16E-GXX
N15P-GT
Market segment
Laptop
Laptop
Release date
September 2014
March 2014
Bus support
PCI Express 3.0
PCI Express 2.0, PCI Express 3.0
Interface
MXM-B (3.0)
PCIe 3.0 x16
SLI options
+
+
Boost clock speed
1216 MHz
-
Core clock speed
1064 MHz
Up to 936 MHz
CUDA cores
2048
640
Floating-point performance
4,358 gflops
1,155 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,200 million
1,870 million
Pipelines / CUDA cores
2048
640
Power consumption (TDP)
100-200 Watt
45 Watt
Texture fill rate
144 billion/sec
36.08
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
4 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
7.0 GB/s
Up to 2500 MHz
Memory bandwidth
224 GB/s
80.0 GB/s
Shared memory
-
-
Standard memory configuration
-
DDR3 or GDDR5
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
No outputs
eDP 1.2 signal support
-
Up to 3840x2160
LVDS signal support
-
Up to 1920x1200
Multi monitor support
4 displays
-
VGA аnalog display support
+
Up to 2048x1536
DisplayPort Multimode (DP++) support
+
Up to 3840x2160
HDCP content protection
-
+
HDMI
+
+
7.1 channel HD audio on HDMI
-
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
G-SYNC support
+
-
Audio input for HDMI
Internal
-
DirectX
12 (12_1)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.5
4.5
Shader Model
6.4
5.1
Vulkan
1.1.126
1.1.126
Ansel
-
+
BatteryBoost
+
-
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
+
Optimus
+
+
TrueHD and DTS-HD audio bitstreaming
-
+