Radeon HD 3850 and GeForce RTX 3080 Mobile - video card comparison
Radeon HD 3850
GeForce RTX 3080 Mobile
Architecture
TeraScale (2005−2013)
Ampere (2020−2022)
GPU code name
RV670
GN20-E7 GA104
Market segment
Desktop
Laptop
Release date
November 2007
January 2021
Interface
PCIe 2.0 x16
PCIe 4.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
1245 - 1710 MHz
Core clock speed
668 MHz
780 - 1100 MHz
Floating-point performance
427.5 gflops
-
Manufacturing process technology
55 nm
8 nm
Number of transistors
666 million
17,400 million
Pipelines / CUDA cores
320
6144
Power consumption (TDP)
75 Watt
150 Watt (80 - 150 Watt TGP)
Texture fill rate
10.69
296.6
Memory type
GDDR3
GDDR6
Maximum RAM amount
1 GB
16 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
1660 MHz
14000 MHz
Memory bandwidth
53.12 GB/s
384.0 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 Ultimate (12_2)
CUDA
-
8.6
OpenCL
N/A
2.0
OpenGL
3.3
4.6
Shader Model
4.1
6.5
Vulkan
N/A
1.2