GeForce 9800 GX2 and Radeon HD 6490 - video card comparison
GeForce 9800 GX2
Radeon HD 6490
Architecture
Tesla (2006−2010)
TeraScale 2 (2009−2015)
GPU code name
G92
Redwood
Market segment
Desktop
Desktop
Release date
March 2008
July 2011
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
6-pin & 8-pin
None
SLI options
+
-
Core clock speed
600 MHz
550 MHz
CUDA cores
256 (128 per GPU)
-
Floating-point performance
2x 384.0 gflops
352.0 gflops
Manufacturing process technology
65 nm
40 nm
Number of transistors
754 million
627 million
Pipelines / CUDA cores
128
320
Power consumption (TDP)
197 Watt
39 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
76.8 billion/sec
8.800
Memory type
GDDR3
DDR2
Maximum RAM amount
512 MB
1 GB
Memory bus width
512 Bit
128 Bit
Memory clock speed
1000 MHz
1000 MHz
Memory bandwidth
128 (64 per GPU)
16 GB/s
Display Connectors
HDMIDual Link DVI
1x DVI, 1x HDMI, 1x VGA
Multi monitor support
+
-
HDMI
+
+
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
11.2 (11_0)
CUDA
+
-
OpenCL
1.1
1.2
OpenGL
2.1
4.4
Shader Model
4.0
5.0
Vulkan
N/A
N/A