GeForce 6800 GS and Radeon HD 6450 OEM - video card comparison
GeForce 6800 GS
Radeon HD 6450 OEM
Architecture
Curie (2003−2013)
TeraScale 2 (2009−2015)
GPU code name
NV41
Caicos
Market segment
Desktop
Desktop
Release date
November 2005
February 2011
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Core clock speed
425 MHz
625 MHz
Floating-point performance
-
200 gflops
Manufacturing process technology
130 nm
40 nm
Number of transistors
190 million
370 million
Pipelines / CUDA cores
-
160
Power consumption (TDP)
-
18 Watt
Texture fill rate
5.100
5.000
Memory type
GDDR3
GDDR3
Maximum RAM amount
256 MB
512 MB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1000 MBps
1066 MHz
Memory bandwidth
32 GB/s
8.528 GB/s
Display Connectors
1x DVI, 1x VGA, 1x S-Video
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
9.0c (9_3)
11.2 (11_0)
OpenCL
N/A
1.2
OpenGL
2.0 (full)
Shader Model
3.05.0
Vulkan
N/A
N/A