Radeon R9 270 and Radeon HD 7660G + HD 7670M Dual Graphics - video card comparison
Radeon R9 270
Radeon HD 7660G + HD 7670M Dual Graphics
Architecture
GCN 1.0 (2012−2020)
Terascale 2 (2009−2015)
GPU code name
Curacao
-
Market segment
Desktop
Laptop
Release date
November 2013
May 2012
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1 x 6-pin
-
Boost clock speed
925 MHz
-
Core clock speed
-
685 / 600 MHz
Floating-point performance
2,368 gflops
-
Manufacturing process technology
28 nm
32 nm
Number of transistors
2,800 million
-
Pipelines / CUDA cores
1280
862
Power consumption (TDP)
150 Watt
-
Texture fill rate
74.00
-
Memory type
GDDR5
DDR3,GDDR5
Maximum RAM amount
2 GB
-
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
1800 MHz
Memory bandwidth
179.2 GB/s
-
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
-
Eyefinity
1
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
11
Mantle
-
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
+
-
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-