GeForce GTX 275 and GeForce GTX 285 X2 - video card comparison
GeForce GTX 275
GeForce GTX 285 X2
Architecture
Tesla 2.0 (2007−2013)
Tesla 2.0 (2007−2013)
GPU code name
GT200B
GT200B
Market segment
Desktop
Desktop
Release date
January 2009
June 2009
Bus support
PCI-E 2.0
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
2x 8-pin
SLI options
+
-
Core clock speed
633 MHz
648 MHz
CUDA cores
240
-
Floating-point performance
673.9 gflops
-
Manufacturing process technology
55 nm
55 nm
Number of transistors
1,400 million
1,400 million
Pipelines / CUDA cores
240
240
Power consumption (TDP)
219 Watt
315 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
50.6 billion/sec
51.84
Memory type
GDDR3
GDDR3
Maximum RAM amount
896 MB
2 GB
Memory bus width
448 Bit
512 Bit
Memory clock speed
1134 MHz
2.3 GB/s
Memory bandwidth
127.0 GB/s
147.5 GB/s
Display Connectors
Two Dual Link DVI
2x DVI, 1x HDMI
Multi monitor support
+
-
HDMI
-
+
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
11.1 (10_0)
CUDA
+
1.3
OpenCL
1.1
1.1
OpenGL
3.0
3.3
Shader Model
4.0
4.0
Vulkan
N/A
N/A