Radeon HD 4550 and Radeon HD 6490M Mac Edition - video card comparison
Radeon HD 4550
Radeon HD 6490M Mac Edition
Architecture
TeraScale (2005−2013)
TeraScale 2 (2009−2015)
GPU code name
RV710
Seymour
Market segment
Desktop
Desktop
Release date
September 2008
May 2011
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Core clock speed
600 MHz
750 MHz
Floating-point performance
96 gflops
240 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
242 million
370 million
Pipelines / CUDA cores
80
160
Power consumption (TDP)
25 Watt
-
Texture fill rate
4.800
6.000
Memory type
DDR2
GDDR5
Maximum RAM amount
256 MB
256 MB
Memory bus width
64 Bit
64 Bit
Memory clock speed
1310 MHz
3176 MHz
Memory bandwidth
10.48 GB/s
25.41 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
10.1 (10_1)
11.2 (11_0)
OpenCL
1.1
1.2
OpenGL
3.3
4.4
Shader Model
4.1
5.0
Vulkan
N/A
N/A