Radeon HD 5850 and GeForce GT 420 OEM - video card comparison
Radeon HD 5850
GeForce GT 420 OEM
Architecture
Terascale 2 (2009−2015)
Fermi (2010−2014)
GPU code name
Cypress
GF108
Market segment
Desktop
Desktop
Release date
September 2009
September 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
None
Core clock speed
725 MHz
700 MHz
Floating-point performance
2,088.0 gflops
134.4 gflops
Manufacturing process technology
40 nm
40 nm
Number of transistors
2,154 million
585 million
Pipelines / CUDA cores
1440
48
Power consumption (TDP)
151 Watt
50 Watt
Texture fill rate
52.20
2.800
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
2000 MHz
1800 MHz
Memory bandwidth
128.0 GB/s
28.8 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
11.2 (11_0)
12 (11_0)
CUDA
-
2.1
OpenCL
1.2
1.1
OpenGL
4.4
4.6
Shader Model
5.0
5.1
Vulkan
N/A
N/A