
GeForce GTX 490 and GeForce GTX 285 X2 - video card comparison
GeForce GTX 490
GeForce GTX 285 X2
Architecture
Fermi (2010−2014)
Tesla 2.0 (2007−2013)
GPU code name
GF100
GT200B
Market segment
Desktop
Desktop
Release date
-
June 2009
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 8-pin
2x 8-pin
Core clock speed
608 MHz
648 MHz
Manufacturing process technology
40 nm
55 nm
Number of transistors
3,100 million
1,400 million
Pipelines / CUDA cores
480
240
Power consumption (TDP)
365 Watt
315 Watt
Texture fill rate
36.48
51.84
Memory type
GDDR5
GDDR3
Maximum RAM amount
1536 MB
2 GB
Memory bus width
384 Bit
512 Bit
Memory clock speed
3.4 GB/s
2.3 GB/s
Memory bandwidth
164.0 GB/s
147.5 GB/s
Display Connectors
3x DVI, 1x mini-DisplayPort
2x DVI, 1x HDMI
HDMI
-
+
DirectX
12 (11_0)
11.1 (10_0)
CUDA
2.0
1.3
OpenCL
1.1
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.0
Vulkan
N/A
N/A