GeForce RTX 3090 and GeForce GT 420 OEM - video card comparison
GeForce RTX 3090
GeForce GT 420 OEM
Architecture
Ampere (2020−2022)
Fermi (2010−2014)
GPU code name
Ampere GA102
GF108
Market segment
Desktop
Desktop
Release date
September 2020
September 2010
Interface
PCIe 4.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 12-pin
None
Boost clock speed
1700 MHz
-
Core clock speed
1400 MHz
700 MHz
Floating-point performance
-
134.4 gflops
Manufacturing process technology
8 nm
40 nm
Number of transistors
28,300 million
585 million
Pipelines / CUDA cores
10496
48
Power consumption (TDP)
350 Watt
50 Watt
Texture fill rate
556.0
2.800
Memory type
GDDR6X
DDR3
Maximum RAM amount
24 GB
1 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
19500 MHz
1800 MHz
Memory bandwidth
936.2 GB/s
28.8 GB/s
Shared memory
-
-
Display Connectors
1x HDMI, 3x DisplayPort
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 Ultimate (12_2)
12 (11_0)
CUDA
8.5
2.1
OpenCL
2.0
1.1
OpenGL
4.6
4.6
Shader Model
6.5
5.1
Vulkan
1.2
N/A