Radeon R5 340X OEM and Radeon HD 3870 - video card comparison
Radeon R5 340X OEM
Radeon HD 3870
Architecture
GCN 1.0 (2012−2020)
TeraScale (2005−2013)
GPU code name
Oland
RV670
Market segment
Desktop
Desktop
Release date
May 2015
November 2007
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
1x 6-pin
Boost clock speed
1050 MHz
-
Core clock speed
900 MHz
777 MHz
Floating-point performance
806.4 gflops
497.3 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
950 million
666 million
Pipelines / CUDA cores
384
320
Power consumption (TDP)
65 Watt
106 Watt
Texture fill rate
21.60
12.43
Memory type
DDR3
GDDR4
Maximum RAM amount
2 GB
512 MB
Memory bus width
64 Bit
256 Bit
Memory clock speed
2000 MHz
2252 MHz
Memory bandwidth
16 GB/s
72.06 GB/s
Display Connectors
1x DVI, 1x DisplayPort
2x DVI, 1x S-Video
DirectX
12 (11_1)
10.1 (10_1)
OpenCL
1.2
N/A
OpenGL
4.6
3.3
Shader Model
5.1
4.1
Vulkan
1.2.131
N/A