Radeon HD 6870 1600SP Edition and Radeon X1650 XT Dual - video card comparison
Radeon HD 6870 1600SP Edition
Radeon X1650 XT Dual
Architecture
TeraScale 2 (2009−2015)
R500 (2005−2007)
GPU code name
Cypress
RV560
Market segment
Desktop
Desktop
Release date
January 2013
October 2006
Interface
PCIe 2.0 x16
PCIe 1.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
Core clock speed
850 MHz
525 MHz
Floating-point performance
2,720 gflops
-
Manufacturing process technology
40 nm
80 nm
Number of transistors
2,154 million
330 million
Pipelines / CUDA cores
1600
-
Power consumption (TDP)
175 Watt
-
Texture fill rate
68.00
4.200
Memory type
GDDR5
GDDR3
Maximum RAM amount
1 GB
256 MB
Memory bus width
256 Bit
128 Bit
Memory clock speed
4200 MHz
1400 MHz
Memory bandwidth
134.4 GB/s
22.4 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI
HDMI
+
-
DirectX
11.2 (11_0)
9.0c (9_3)
OpenCL
1.2
N/A
OpenGL
4.4
2.0
Shader Model
5.0
3.0
Vulkan
N/A
N/A