Radeon R7 450 OEM and Radeon HD 3870 - video card comparison
Radeon R7 450 OEM
Radeon HD 3870
Architecture
GCN 1.0 (2012−2020)
TeraScale (2005−2013)
GPU code name
Cape Verde
RV670
Market segment
Desktop
Desktop
Release date
June 2016
November 2007
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Core clock speed
925 MHz
777 MHz
Floating-point performance
947.2 gflops
497.3 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
1,500 million
666 million
Pipelines / CUDA cores
512
320
Power consumption (TDP)
65 Watt
106 Watt
Texture fill rate
29.60
12.43
Memory type
GDDR5
GDDR4
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
4.5 GB/s
2252 MHz
Memory bandwidth
72 GB/s
72.06 GB/s
Display Connectors
1x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2
2x DVI, 1x S-Video
HDMI
+
-
DirectX
12 (11_1)
10.1 (10_1)
OpenCL
2.1 (1.2)
N/A
OpenGL
4.6
3.3
Shader Model
6.5 (5.1)
4.1
Vulkan
1.2.170
N/A