GeForce 820M and Riva 128 - video card comparison
GeForce 820M
Riva 128
Architecture
Fermi (2010−2014)
-
GPU code name
N15V-GM
NV3
Market segment
Laptop
Desktop
Release date
January 2014
April 1997
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
AGP 2x
Supplementary power connectors
-
None
Core clock speed
775 MHz
100 MHz
Floating-point performance
240.0 gflops
-
Manufacturing process technology
28 nm
350 nm
Number of transistors
585 million
4 million
Pipelines / CUDA cores
96
-
Power consumption (TDP)
15 Watt
4 Watt
Texture fill rate
10.00
0.1
Memory type
DDR3
SDR
Maximum RAM amount
2 GB
4 MB
Memory bus width
64 Bit
128 Bit
Memory clock speed
1800 MHz
100 MHz
Memory bandwidth
14.4 GB/s
1.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x VGA, 1x DB13W3
DirectX
12 (11_0)
5.0
CUDA
+
-
OpenCL
1.1
N/A
OpenGL
4.5
1.0
Shader Model
5.1
-
Vulkan
N/A
N/A
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-