GeForce GTX 275 and GeForce GTX 660M - video card comparison
Passmark - benchmark score GeForce GTX 275 vs GeForce GTX 660M
GeForce GTX 275
1458
GeForce GTX 660M
1478
GeForce GTX 275
GeForce GTX 660M
Architecture
Tesla 2.0 (2007−2013)
Kepler (2012−2018)
GPU code name
GT200B
N13E-GE
Market segment
Desktop
Laptop
Release date
January 2009
March 2012
Bus support
PCI-E 2.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 2.0 x16
MXM-B (3.0)
Supplementary power connectors
2x 6-pin
-
SLI options
+
+
Boost clock speed
-
950 MHz
Core clock speed
633 MHz
835 MHz
CUDA cores
240
384
Floating-point performance
673.9 gflops
729.6 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
1,400 million
1,270 million
Pipelines / CUDA cores
240
384
Power consumption (TDP)
219 Watt
50 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
50.6 billion/sec
30.4 billion/sec
Memory type
GDDR3
GDDR5
Maximum RAM amount
896 MB
2 GB
Memory bus width
448 Bit
128bit
Memory clock speed
1134 MHz
2000 MHz
Memory bandwidth
127.0 GB/s
64.0 GB/s
Shared memory
-
-
Display Connectors
Two Dual Link DVI
No outputs
Multi monitor support
+
-
HDMI
-
+
HDCP
-
+
Maximum VGA resolution
2048x1536
Up to 2048x1536
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
3.0
4.5
Shader Model
4.0
5.1
Vulkan
N/A
1.1.126
Optimus
-
+