Radeon HD 6850 and GeForce GT 635M - video card comparison
Passmark - benchmark score Radeon HD 6850 vs GeForce GT 635M
Radeon HD 6850
2030
GeForce GT 635M
578
Radeon HD 6850
GeForce GT 635M
Architecture
TeraScale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Barts
N13E-GE2
Market segment
Desktop
Laptop
Release date
October 2010
December 2011
Bus support
AGP
PCI Express 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
753 MHz
Core clock speed
-
Up to 675 MHz
CUDA cores
-
Up to 144
Floating-point performance
1,488.0 gflops
253.4 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
1,700 million
1,170 million
Pipelines / CUDA cores
960
144
Power consumption (TDP)
127 Watt
35 Watt
Texture fill rate
37.20
Up to 16.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
Up to 192bit
Memory clock speed
-
1800 MHz
Memory bandwidth
128.0 GB/s
Up to 43.2 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DisplayPort support
-
-
DirectX
DirectX® 11
12 API
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.4
4.5
Shader Model
5.0
5.1
Vulkan
-
N/A
3D Blu-Ray
-
+
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
Optimus
-
+
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-