Radeon HD 6790 and Radeon HD 2400 PRO AGP - video card comparison
Radeon HD 6790
Radeon HD 2400 PRO AGP
Architecture
Terascale 2 (2009−2015)
TeraScale (2005−2013)
GPU code name
Barts
RV610
Market segment
Desktop
Desktop
Release date
April 2011
June 2007
Interface
PCIe 2.0 x16
AGP 8x
Supplementary power connectors
2x 6-pin
None
Core clock speed
840 MHz
525 MHz
Floating-point performance
1,344.0 gflops
42 gflops
Manufacturing process technology
40 nm
65 nm
Number of transistors
1,700 million
180 million
Pipelines / CUDA cores
800
40
Power consumption (TDP)
150 Watt
20 Watt
Texture fill rate
33.60
2.100
Memory type
GDDR5
DDR2
Maximum RAM amount
1 GB
256 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1050 MHz
800 MHz
Memory bandwidth
134.4 GB/s
6.4 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x VGA, 1x S-Video
HDMI
+
-
DirectX
11.2 (11_0)
10.0 (10_0)
OpenCL
1.2
N/A
OpenGL
4.4
3.3
Shader Model
5.0
4.0
Vulkan
N/A
N/A