GeForce 7800 GTX and GeForce 620M - video card comparison
GeForce 7800 GTX
GeForce 620M
Architecture
Curie (2003−2013)
Fermi 2.0 (2010−2014)
GPU code name
G70
GF117
Market segment
Desktop
Desktop
Release date
June 2005
March 2012
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Core clock speed
430 MHz
625 MHz
Floating-point performance
-
240.0 gflops
Manufacturing process technology
110 nm
28 nm
Number of transistors
302 million
585 million
Pipelines / CUDA cores
-
96
Power consumption (TDP)
86 Watt
15 Watt
Texture fill rate
10.32
10.00
Memory type
GDDR3
DDR3
Maximum RAM amount
256 MB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1200 MHz
1800 MHz
Memory bandwidth
38.4 GB/s
14.4 GB/s
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
9.0c (9_3)
12 (11_0)
CUDA
-
2.1
OpenCL
N/A
1.1
OpenGL
2.1
4.6
Shader Model
3.0
5.1
Vulkan
N/A
N/A