GeForce 820M and GeForce RTX 4090 - video card comparison
Passmark - benchmark score GeForce 820M vs GeForce RTX 4090
GeForce 820M
511
GeForce RTX 4090
39777
GeForce 820M
GeForce RTX 4090
Architecture
Fermi (2010−2014)
Ada Lovelace
GPU code name
N15V-GM
AD102-300-A1
Market segment
Laptop
Desktop
Release date
January 2014
September 2022
Bus support
PCI Express 2.0
-
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
-
1x 16-pin
Boost clock speed
-
2520 MHz
Core clock speed
775 MHz
2235 MHz
Floating-point performance
240.0 gflops
-
Manufacturing process technology
28 nm
5 nm
Number of transistors
585 million
76,300 million
Pipelines / CUDA cores
96
16384
Power consumption (TDP)
15 Watt
450 Watt
Texture fill rate
10.00
1,290
Memory type
DDR3
GDDR6X
Maximum RAM amount
2 GB
24 GB
Memory bus width
64 Bit
384 Bit
Memory clock speed
1800 MHz
21000 MHz
Memory bandwidth
14.4 GB/s
1,008 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
-
+
DirectX
12 (11_0)
12 Ultimate (12_2)
CUDA
+
8.9
OpenCL
1.1
3.0
OpenGL
4.5
4.6
Shader Model
5.1
6.6
Vulkan
N/A
1.3
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-