GeForce GTX 750 Ti and R420 - video card comparison
GeForce GTX 750 Ti
R420
Architecture
Maxwell (2014−2018)
R400 (2004−2008)
GPU code name
GM107
R420
Market segment
Desktop
Desktop
Release date
February 2014
-
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
-
Supplementary power connectors
None
-
Boost clock speed
1085 MHz
-
Core clock speed
1020 MHz
-
CUDA cores
640
-
Floating-point performance
1,389 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
1,870 million
160 million
Pipelines / CUDA cores
640
-
Power consumption (TDP)
60 Watt
-
Texture fill rate
43.40
-
Memory type
GDDR5
-
Maximum RAM amount
4 GB
-
Memory bus width
128 Bit
-
Memory clock speed
5.4 GB/s
-
Memory bandwidth
86.4 GB/s
-
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One mini-HDMI
-
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
9.0b (9_2)
CUDA
+
-
OpenCL
1.2
N/A
OpenGL
4.6
2.1
Shader Model
5.1
-
Vulkan
1.1.126
N/A
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-
Blu Ray 3D
+
-