GeForce GTX 275 and GeForce GTS 450 Rev. 2 - video card comparison
GeForce GTX 275
GeForce GTS 450 Rev. 2
Architecture
Tesla 2.0 (2007−2013)
Fermi 2.0 (2010−2014)
GPU code name
GT200B
GF116
Market segment
Desktop
Desktop
Release date
January 2009
March 2011
Bus support
PCI-E 2.0
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
1x 6-pin
SLI options
+
-
Core clock speed
633 MHz
783 MHz
CUDA cores
240
-
Floating-point performance
673.9 gflops
601.3 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
1,400 million
1,170 million
Pipelines / CUDA cores
240
192
Power consumption (TDP)
219 Watt
106 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
50.6 billion/sec
25.06
Memory type
GDDR3
GDDR5
Maximum RAM amount
896 MB
1 GB
Memory bus width
448 Bit
128 Bit
Memory clock speed
1134 MHz
3608 MHz
Memory bandwidth
127.0 GB/s
57.73 GB/s
Display Connectors
Two Dual Link DVI
2x DVI, 1x mini-HDMI
Multi monitor support
+
-
HDMI
-
+
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
12 (11_0)
CUDA
+
2.1
OpenCL
1.1
1.1
OpenGL
3.0
4.6
Shader Model
4.0
5.1
Vulkan
N/A
N/A