Radeon R9 270 and GeForce GT 635M - video card comparison
Passmark - benchmark score Radeon R9 270 vs GeForce GT 635M
Radeon R9 270
4435
GeForce GT 635M
578
Radeon R9 270
GeForce GT 635M
Architecture
GCN 1.0 (2012−2020)
Fermi (2010−2014)
GPU code name
Curacao
N13E-GE2
Market segment
Desktop
Laptop
Release date
November 2013
December 2011
Bus support
PCIe 3.0
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1 x 6-pin
-
Boost clock speed
925 MHz
753 MHz
Core clock speed
-
Up to 675 MHz
CUDA cores
-
Up to 144
Floating-point performance
2,368 gflops
253.4 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,800 million
1,170 million
Pipelines / CUDA cores
1280
144
Power consumption (TDP)
150 Watt
35 Watt
Texture fill rate
74.00
Up to 16.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
Up to 192bit
Memory clock speed
-
1800 MHz
Memory bandwidth
179.2 GB/s
Up to 43.2 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
1
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DisplayPort support
+
-
DirectX
DirectX® 12
12 API
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.1
OpenGL
4.6
4.5
Shader Model
5.1
5.1
Vulkan
+
N/A
3D Blu-Ray
-
+
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
Optimus
-
+
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-