Radeon HD 8740 OEM and Radeon HD 6570M Mac Edition - video card comparison
Radeon HD 8740 OEM
Radeon HD 6570M Mac Edition
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Cape Verde
Capilano
Market segment
Desktop
Desktop
Release date
September 2013
October 2009
Interface
PCIe 3.0 x16
MXM-II
Supplementary power connectors
None
-
Core clock speed
800 MHz
600 MHz
Floating-point performance
819.2 gflops
480.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,500 million
627 million
Pipelines / CUDA cores
512
400
Power consumption (TDP)
55 Watt
30 Watt
Texture fill rate
25.60
12.00
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
1600 MHz
Memory bandwidth
72 GB/s
25.6 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_1)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
N/A