Radeon R9 M270X and Radeon HD 6750M Mac Edition - video card comparison
Radeon R9 M270X
Radeon HD 6750M Mac Edition
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Venus
Whistler
Market segment
Desktop
Desktop
Release date
March 2014
April 2011
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
MXM-A (3.0)
Boost clock speed
775 MHz
-
Compute units
10
-
Core clock speed
725 MHz
598 MHz
Floating-point performance
1,536 gflops
574.1 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,500 million
716 million
Pipelines / CUDA cores
640
480
Power consumption (TDP)
-
35 Watt
Texture fill rate
31.00
14.35
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1125 MHz
3176 MHz
Memory bandwidth
72 GB/s
50.82 GB/s
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 11
11.2 (11_0)
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.4
Shader Model
5.1
5.0
Vulkan
-
N/A
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-