Radeon HD 4450 and Radeon HD 3870 - video card comparison
Radeon HD 4450
Radeon HD 3870
Architecture
TeraScale (2005−2013)
TeraScale (2005−2013)
GPU code name
RV710
RV670
Market segment
Desktop
Desktop
Release date
November 2011
November 2007
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
600 MHz
777 MHz
Floating-point performance
96 gflops
497.3 gflops
Manufacturing process technology
55 nm
55 nm
Number of transistors
242 million
666 million
Pipelines / CUDA cores
80
320
Power consumption (TDP)
25 Watt
106 Watt
Texture fill rate
4.800
12.43
Memory type
DDR2
GDDR4
Maximum RAM amount
512 MB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
800 MHz
2252 MHz
Memory bandwidth
6.4 GB/s
72.06 GB/s
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
2x DVI, 1x S-Video
HDMI
+
-
DirectX
10.1 (10_1)
10.1 (10_1)
OpenCL
1.1
N/A
OpenGL
3.3
3.3
Shader Model
4.1
4.1
Vulkan
N/A
N/A