Radeon HD 2600 XT and GeForce GT 420 OEM - video card comparison
Radeon HD 2600 XT
GeForce GT 420 OEM
Architecture
TeraScale (2005−2013)
Fermi (2010−2014)
GPU code name
RV630
GF108
Market segment
Desktop
Desktop
Release date
June 2007
September 2010
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
None
Core clock speed
800 MHz
700 MHz
Floating-point performance
192 gflops
134.4 gflops
Manufacturing process technology
65 nm
40 nm
Number of transistors
390 million
585 million
Pipelines / CUDA cores
120
48
Power consumption (TDP)
45 Watt
50 Watt
Texture fill rate
6.400
2.800
Memory type
GDDR3
DDR3
Maximum RAM amount
256 MB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1400 MHz
1800 MHz
Memory bandwidth
22.4 GB/s
28.8 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
10.0 (10_0)
12 (11_0)
CUDA
-
2.1
OpenCL
N/A
1.1
OpenGL
3.3
4.6
Shader Model
4.0
5.1
Vulkan
N/A
N/A