GeForce GTX 780 6 GB and GeForce RTX 3080 12 GB - video card comparison
GeForce GTX 780 6 GB
GeForce RTX 3080 12 GB
Architecture
Kepler (2012−2018)
Ampere (2020−2022)
GPU code name
GK110B
Ampere GA102
Market segment
Desktop
Desktop
Release date
September 2013
January 2022
Interface
PCIe 3.0 x16
PCIe 4.0 x16
Supplementary power connectors
1x 6-pin + 1x 8-pin
1x 12-pin
Boost clock speed
902 MHz
1260 MHz
Core clock speed
863 MHz
-
Floating-point performance
4,156 gflops
-
Manufacturing process technology
28 nm
8 nm
Number of transistors
7,080 million
28,300 million
Pipelines / CUDA cores
2304
8960
Power consumption (TDP)
250 Watt
350 Watt
Texture fill rate
173.2
478.8
Memory type
GDDR5
GDDR6X
Maximum RAM amount
6 GB
12 GB
Memory bus width
384 Bit
384 Bit
Memory clock speed
6008 MHz
1710 MHz
Memory bandwidth
288.4 GB/s
912.4 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
1x HDMI 2.1, 3x DisplayPort 1.4a
HDMI
+
+
DirectX
12 (11_1)
12 Ultimate (12_2)
CUDA
3.5
8.6
OpenCL
1.2
3.0
OpenGL
4.6
4.6
Shader Model
5.1
6.6
Vulkan
1.1.126
1.3