Radeon HD 6550D and GeForce GT 640M Mac Edition - video card comparison
Radeon HD 6550D
GeForce GT 640M Mac Edition
Architecture
Terascale 2 (2009−2015)
Kepler (2012−2018)
GPU code name
Llano
GK107
Market segment
Desktop
Desktop
Release date
June 2011
February 2013
Interface
IGP
PCIe 3.0 x16
Core clock speed
600 MHz
745 MHz
Floating-point performance
-
572.2 gflops
Manufacturing process technology
32 nm
28 nm
Number of transistors
1000 Million
1,270 million
Pipelines / CUDA cores
400
384
Power consumption (TDP)
65 Watt
32 Watt
Texture fill rate
12.00
23.84
Memory type
System Shared
GDDR5
Maximum RAM amount
System Shared
512 MB
Memory bus width
System Shared
64 Bit
Memory clock speed
System Shared
5000 MHz
Memory bandwidth
-
40 GB/s
Shared memory
+
-
Display Connectors
No outputs
No outputs
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
3.0
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
1.1.126