Radeon HD 7790 and Radeon R5 340X OEM - video card comparison
Radeon HD 7790
Radeon R5 340X OEM
Architecture
GCN 2.0 (2013−2017)
GCN 1.0 (2012−2020)
GPU code name
Bonaire
Oland
Market segment
Desktop
Desktop
Release date
March 2013
May 2015
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
1050 MHz
Core clock speed
1000 MHz
900 MHz
Floating-point performance
1,792 gflops
806.4 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,080 million
950 million
Pipelines / CUDA cores
896
384
Power consumption (TDP)
85 Watt
65 Watt
Texture fill rate
56.00
21.60
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
6000 MHz
2000 MHz
Memory bandwidth
96 GB/s
16 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x DisplayPort
HDMI
+
-
DirectX
12 (12_0)
12 (11_1)
OpenCL
2.0
1.2
OpenGL
4.6
4.6
Shader Model
6.3
5.1
Vulkan
1.2.131
1.2.131