GeForce GTX 275 and GeForce 820M - video card comparison
Passmark - benchmark score GeForce GTX 275 vs GeForce 820M
GeForce GTX 275
1458
GeForce 820M
511
GeForce GTX 275
GeForce 820M
Architecture
Tesla 2.0 (2007−2013)
Fermi (2010−2014)
GPU code name
GT200B
N15V-GM
Market segment
Desktop
Laptop
Release date
January 2009
January 2014
Bus support
PCI-E 2.0
PCI Express 2.0
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
-
SLI options
+
-
Core clock speed
633 MHz
775 MHz
CUDA cores
240
-
Floating-point performance
673.9 gflops
240.0 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
1,400 million
585 million
Pipelines / CUDA cores
240
96
Power consumption (TDP)
219 Watt
15 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
50.6 billion/sec
10.00
Memory type
GDDR3
DDR3
Maximum RAM amount
896 MB
2 GB
Memory bus width
448 Bit
64 Bit
Memory clock speed
1134 MHz
1800 MHz
Memory bandwidth
127.0 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
Two Dual Link DVI
No outputs
Multi monitor support
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
3.0
4.5
Shader Model
4.0
5.1
Vulkan
N/A
N/A
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+