GeForce GTX 850M and GeForce GTX 850A - video card comparison
Passmark - benchmark score GeForce GTX 850M vs GeForce GTX 850A
GeForce GTX 850M
2591
GeForce GTX 850A
1080
GeForce GTX 850M
GeForce GTX 850A
Architecture
Maxwell (2014−2018)
Maxwell (2014−2018)
GPU code name
N15P-GT
GM107
Market segment
Laptop
Desktop
Release date
March 2014
March 2014
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x16
SLI options
+
-
Boost clock speed
-
936 MHz
Core clock speed
Up to 936 MHz
902 MHz
CUDA cores
640
-
Floating-point performance
1,155 gflops
1,198 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
1,870 million
Pipelines / CUDA cores
640
640
Power consumption (TDP)
45 Watt
45 Watt
Texture fill rate
36.08
37.44
Memory type
DDR3, GDDR5
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
Up to 2500 MHz
1800 MHz
Memory bandwidth
80.0 GB/s
28.8 GB/s
Shared memory
-
-
Standard memory configuration
DDR3 or GDDR5
-
Display Connectors
No outputs
No outputs
eDP 1.2 signal support
Up to 3840x2160
-
LVDS signal support
Up to 1920x1200
-
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
+
-
DirectX
12 (11_0)
12 (11_0)
CUDA
+
5.0
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
Ansel
+
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-
TrueHD and DTS-HD audio bitstreaming
+
-