GeForce GTX 660 and Radeon R9 M270X - video card comparison
Passmark - benchmark score GeForce GTX 660 vs Radeon R9 M270X
GeForce GTX 660
4119
Radeon R9 M270X
1240
GeForce GTX 660
Radeon R9 M270X
Architecture
Kepler (2012−2018)
GCN 1.0 (2012−2020)
GPU code name
GK106
Venus
Market segment
Desktop
Desktop
Release date
September 2012
March 2014
Bus support
PCI Express 3.0
PCIe 3.0 x16
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Supplementary power connectors
One 6-pin
-
SLI options
+
-
Boost clock speed
1033 MHz
775 MHz
Compute units
-
10
Core clock speed
980 MHz
725 MHz
CUDA cores
960
-
Floating-point performance
1,981 gflops
1,536 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,540 million
1,500 million
Pipelines / CUDA cores
960
640
Power consumption (TDP)
140 Watt
-
Texture fill rate
78.4 billion/sec
31.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
4 GB
Memory bus width
192-bit GDDR5
128 Bit
Memory clock speed
6.0 GB/s
1125 MHz
Memory bandwidth
144.2 GB/s
72 GB/s
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
No outputs
Multi monitor support
4 displays
-
Eyefinity
-
1
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
DirectX® 11
CUDA
+
-
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.3
4.4
Shader Model
5.1
5.1
Vulkan
1.1.126
-
3D Blu-Ray
+
-
3D Gaming
+
-
3D Vision
+
-
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+