GeForce GTX 850M and Radeon R7 M340 - video card comparison
Passmark - benchmark score GeForce GTX 850M vs Radeon R7 M340
GeForce GTX 850M
2591
Radeon R7 M340
679
GeForce GTX 850M
Radeon R7 M340
Architecture
Maxwell (2014−2018)
GCN (2011−2017)
GPU code name
N15P-GT
Meso Pro DDR3
Market segment
Laptop
Laptop
Release date
March 2014
June 2015
Bus support
PCI Express 2.0, PCI Express 3.0
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
-
None
SLI options
+
-
Boost clock speed
-
1021 MHz
Compute units
-
6
Core clock speed
Up to 936 MHz
1021 MHz
CUDA cores
640
-
Floating-point performance
1,155 gflops
549.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
950 million
Pipelines / CUDA cores
640
320
Power consumption (TDP)
45 Watt
-
Texture fill rate
36.08
17.16
Memory type
DDR3, GDDR5
DDR3
Maximum RAM amount
4 GB
4 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
Up to 2500 MHz
1000 MHz
Memory bandwidth
80.0 GB/s
16 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
-
Eyefinity
-
1
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)
DirectX® 12
CUDA
+
-
Mantle
-
+
OpenCL
1.1
Not Listed
OpenGL
4.5
4.4
Shader Model
5.1
5.1
Vulkan
1.1.126
+
Ansel
+
-
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
H.264, VC1, MPEG2 1080p video decoder
+
-
HD3D
-
+
Optimus
+
-
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
TrueHD and DTS-HD audio bitstreaming
+
-
ZeroCore
-
+