Mobility Radeon HD 3870 and Radeon HD 5450 - video card comparison
Mobility Radeon HD 3870
Radeon HD 5450
Architecture
RV6xx (2007−2010)
TeraScale 2 (2009−2015)
GPU code name
M88-XT
Cedar
Market segment
Laptop
Desktop
Release date
March 2008
February 2010
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
-
None
Core clock speed
660 MHz
650 MHz
Floating-point performance
422.4 gflops
104 gflops
Manufacturing process technology
55 nm
40 nm
Number of transistors
666 million
292 million
Pipelines / CUDA cores
320
80
Power consumption (TDP)
55 Watt
19 Watt
Texture fill rate
10.56
5.200
Memory type
GDDR3
DDR2
Maximum RAM amount
512 MB
2 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
850 MHz
800 MHz
Memory bandwidth
54.4 GB/s
6.4 GB/s
Shared memory
-
-
Display Connectors
No outputs
1x DVI, 1x HDMI, 1x VGA
HDMI
-
+
DirectX
10.1 (10_1)
11.2 (11_0)
OpenCL
N/A
1.2
OpenGL
3.3
4.4
Shader Model
4.1
5.0
Vulkan
N/A
N/A