GeForce GT 740 and Radeon HD 6390 - video card comparison
GeForce GT 740
Radeon HD 6390
Architecture
Kepler (2012−2018)
TeraScale 2 (2009−2015)
GPU code name
GK107
Redwood
Market segment
Desktop
Desktop
Release date
May 2014
July 2011
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Core clock speed
993 MHz
550 MHz
Floating-point performance
762.6 gflops
352.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,270 million
627 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
64 Watt
39 Watt
Texture fill rate
31.78
8.800
Memory type
GDDR5
DDR2
Maximum RAM amount
4 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
5012 MHz
1000 MHz
Memory bandwidth
80.19 GB/s
16 GB/s
Display Connectors
2x DVI, 1x mini-HDMI
1x DVI, 1x HDMI, 1x VGA
HDMI
+
+
DirectX
12 (11_0)
11.2 (11_0)
CUDA
3.0
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.1.126
N/A