Radeon HD 4830 and GeForce GT 820M - video card comparison
Passmark - benchmark score Radeon HD 4830 vs GeForce GT 820M
Radeon HD 4830
860
GeForce GT 820M
584
Radeon HD 4830
GeForce GT 820M
Architecture
TeraScale (2005−2013)
Fermi 2.0 (2010−2014)
GPU code name
RV770
GF117
Market segment
Desktop
Desktop
Release date
October 2008
November 2013
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
-
Core clock speed
575 MHz
775 MHz
Floating-point performance
736.0 gflops
297.6 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
956 million
585 million
Pipelines / CUDA cores
640
96
Power consumption (TDP)
95 Watt
15 Watt
Texture fill rate
18.40
12.40
Memory type
GDDR3
DDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1800 MHz
1800 MHz
Memory bandwidth
57.6 GB/s
14.4 GB/s
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 (11_0)
CUDA
-
2.1
OpenCL
1.1
1.1
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
N/A