Radeon HD 7790 and GeForce GTS 450 Rev. 3 - video card comparison
Radeon HD 7790
GeForce GTS 450 Rev. 3
Architecture
GCN 2.0 (2013−2017)
Fermi 2.0 (2010−2014)
GPU code name
Bonaire
GF116
Market segment
Desktop
Desktop
Release date
March 2013
July 2012
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
-
Core clock speed
1000 MHz
783 MHz
Floating-point performance
1,792 gflops
451.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,080 million
1,170 million
Pipelines / CUDA cores
896
144
Power consumption (TDP)
85 Watt
106 Watt
Texture fill rate
56.00
18.79
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
6000 MHz
1400 MHz
Memory bandwidth
96 GB/s
22.4 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI, 1x mini-HDMI
HDMI
+
+
DirectX
12 (12_0)
12 (11_0)
CUDA
-
2.1
OpenCL
2.0
1.1
OpenGL
4.6
4.6
Shader Model
6.3
5.1
Vulkan
1.2.131
N/A