GeForce GT 635M and Radeon R5 M255 - video card comparison
Passmark - benchmark score GeForce GT 635M vs Radeon R5 M255
GeForce GT 635M
578
Radeon R5 M255
550
GeForce GT 635M
Radeon R5 M255
Architecture
Fermi (2010−2014)
GCN (2011−2017)
GPU code name
N13E-GE2
Topaz Pro / Sun
Market segment
Laptop
Laptop
Release date
December 2011
May 2014
Bus support
PCI Express 2.0
PCIe 3.0 x8
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Boost clock speed
753 MHz
940 MHz
Compute units
-
5
Core clock speed
Up to 675 MHz
940 MHz
CUDA cores
Up to 144
-
Floating-point performance
253.4 gflops
721.9 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,170 million
1,550 million
Pipelines / CUDA cores
144
320
Power consumption (TDP)
35 Watt
-
Texture fill rate
Up to 16.2 billion/sec
22.56
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
4 GB
Memory bus width
Up to 192bit
64 Bit
Memory clock speed
1800 MHz
1000 MHz
Memory bandwidth
Up to 43.2 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
-
+
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
DirectX® 11
CUDA
+
-
Mantle
-
+
OpenCL
1.1
Not Listed
OpenGL
4.5
4.4
Shader Model
5.1
6.3
Vulkan
N/A
-
3D Blu-Ray
+
-
AppAcceleration
-
+
DualGraphics
-
1
Enduro
-
-
HD3D
-
+
Optimus
+
-
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+