Radeon R9 270X and GeForce GTX 650 - video card comparison
Passmark - benchmark score Radeon R9 270X vs GeForce GTX 650
Radeon R9 270X
5036
GeForce GTX 650
1801
Radeon R9 270X
GeForce GTX 650
Architecture
GCN (2011−2017)
Kepler (2012−2018)
GPU code name
Curacao XT
GK107
Market segment
Desktop
Desktop
Release date
October 2013
September 2012
Bus support
PCIe 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
2 x 6-pin
One 6-pin
Boost clock speed
1050 MHz
-
Core clock speed
-
1058 MHz
CUDA cores
-
384
Floating-point performance
2,688 gflops
812.5 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
1,270 million
Pipelines / CUDA cores
1280
384
Power consumption (TDP)
180 Watt
64 Watt
Texture fill rate
84.00
33.9 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
128-bit GDDR5
Memory clock speed
-
5.0 GB/s
Memory bandwidth
179.2 GB/s
80.0 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
One Dual Link DVI-I, One Dual Link DVI-D, One Mini HDMI
Multi monitor support
-
4 displays
Eyefinity
+
-
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
DisplayPort support
+
-
Audio input for HDMI
-
Internal
DirectX
DirectX® 12
12 (11_0)
CUDA
-
+
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.3
Shader Model
5.1
5.1
Vulkan
+
1.1.126
3D Blu-Ray
-
+
3D Gaming
-
+
3D Vision
-
+
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-