GeForce GTX 850M and Radeon HD 6770 - video card comparison
Passmark - benchmark score GeForce GTX 850M vs Radeon HD 6770
GeForce GTX 850M
2591
Radeon HD 6770
1286
GeForce GTX 850M
Radeon HD 6770
Architecture
Maxwell (2014−2018)
TeraScale 2 (2009−2015)
GPU code name
N15P-GT
Juniper
Market segment
Laptop
Desktop
Release date
March 2014
January 2011
Bus support
PCI Express 2.0, PCI Express 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
1x 6-pin
SLI options
+
-
Boost clock speed
-
900 MHz
Core clock speed
Up to 936 MHz
-
CUDA cores
640
-
Floating-point performance
1,155 gflops
1,360.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,870 million
1,040 million
Pipelines / CUDA cores
640
800
Power consumption (TDP)
45 Watt
108 Watt
Texture fill rate
36.08
34.00
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
Up to 2500 MHz
1050 MHz
Memory bandwidth
80.0 GB/s
76.8 GB/s
Shared memory
-
-
Standard memory configuration
DDR3 or GDDR5
-
Display Connectors
No outputs
2x DVI, 1x HDMI, 2x mini-DisplayPort
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
+
-
DisplayPort support
-
-
DirectX
12 (11_0)
DirectX® 11
CUDA
+
-
Mantle
-
-
OpenCL
1.1
1.2
OpenGL
4.5
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
-
Ansel
+
-
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
H.264, VC1, MPEG2 1080p video decoder
+
-
HD3D
-
-
Optimus
+
-
PowerTune
-
-
TrueAudio
-
-
TrueHD and DTS-HD audio bitstreaming
+
-
ZeroCore
-
-