GeForce 8800 GTX and Radeon HD 6490 - video card comparison
GeForce 8800 GTX
Radeon HD 6490
Architecture
Tesla (2006−2010)
TeraScale 2 (2009−2015)
GPU code name
G80
Redwood
Market segment
Desktop
Desktop
Release date
November 2006
July 2011
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
SLI options
+
-
Core clock speed
576 MHz
550 MHz
CUDA cores
575
-
Floating-point performance
345.6 gflops
352.0 gflops
Manufacturing process technology
90 nm
40 nm
Number of transistors
681 million
627 million
Pipelines / CUDA cores
128
320
Power consumption (TDP)
155 Watt
39 Watt
Texture fill rate
36.8 billion/sec
8.800
Memory type
GDDR3
DDR2
Maximum RAM amount
768 MB
1 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
900 MHz
1000 MHz
Memory bandwidth
86.4 GB/s
16 GB/s
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
11.1 (10_0)
11.2 (11_0)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
3.3
4.4
Shader Model
4.0
5.0
Vulkan
N/A
N/A