Radeon HD 6570 and Mobility Radeon HD 3870 - video card comparison
Radeon HD 6570
Mobility Radeon HD 3870
Architecture
TeraScale 2 (2009−2015)
RV6xx (2007−2010)
GPU code name
Turks
M88-XT
Market segment
Desktop
Laptop
Release date
April 2011
March 2008
Bus support
PCIe 2.1 x16
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
-
Boost clock speed
650 MHz
-
Core clock speed
-
660 MHz
Floating-point performance
624.0 gflops
422.4 gflops
Manufacturing process technology
40 nm
55 nm
Number of transistors
716 million
666 million
Pipelines / CUDA cores
480
320
Power consumption (TDP)
40 Watt
55 Watt
Texture fill rate
15.60
10.56
Memory type
GDDR5
GDDR3
Maximum RAM amount
4 GB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
900 MHz
850 MHz
Memory bandwidth
28.8 GB/s
54.4 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
No outputs
Eyefinity
1
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 11
10.1 (10_1)
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.4
3.3
Shader Model
5.0
4.1
Vulkan
-
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
UVD
+
-
ZeroCore
-
-