GeForce GTX 745 OEM and Radeon X800 CrossFire Edition - video card comparison
GeForce GTX 745 OEM
Radeon X800 CrossFire Edition
Architecture
Maxwell (2014−2018)
R400 (2004−2008)
GPU code name
GM107
R423
Market segment
Desktop
Desktop
Release date
February 2014
October 2005
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
None
None
Core clock speed
1033 MHz
500 MHz
Floating-point performance
793.3 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
1,870 million
160 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
55 Watt
-
Texture fill rate
24.79
8.000
Memory type
DDR3
GDDR3
Maximum RAM amount
4 GB
256 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1800 MHz
1000 MHz
Memory bandwidth
28.8 GB/s
32 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x VGA
2x DVI
HDMI
+
-
DirectX
12 (11_0)
9.0b (9_2)
CUDA
5.0
-
OpenCL
1.2
N/A
OpenGL
4.6
2.0
Shader Model
5.1
-
Vulkan
1.1.126
N/A