GeForce GT 540M and GeForce 820M - video card comparison
Passmark - benchmark score GeForce GT 540M vs GeForce 820M
GeForce GT 540M
493
GeForce 820M
511
GeForce GT 540M
GeForce 820M
Architecture
Fermi (2010−2014)
Fermi (2010−2014)
GPU code name
N12P-GS
N15V-GM
Market segment
Laptop
Laptop
Release date
January 2011
January 2014
Bus support
-
PCI Express 2.0
Interface
MXM-A (3.0)
PCIe 2.0 x16
Core clock speed
672 MHz
775 MHz
CUDA cores
96
-
Floating-point performance
258.05 gflops
240.0 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
585 million
585 million
Pipelines / CUDA cores
96
96
Power consumption (TDP)
35 Watt
15 Watt
Texture fill rate
10.8 billion/sec
10.00
Memory type
DDR3
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
900 MHz
1800 MHz
Memory bandwidth
28.8 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
N/A
N/A
3D Blu-Ray
+
-
3D Gaming
+
-
GameWorks
-
+
GPU Boost
-
2.0
Optimus
+
+