Radeon HD 7790 and GeForce GT 620 - video card comparison
Passmark - benchmark score Radeon HD 7790 vs GeForce GT 620
Radeon HD 7790
3183
GeForce GT 620
388
Radeon HD 7790
GeForce GT 620
Architecture
GCN 2.0 (2013−2017)
Fermi (2010−2014)
GPU code name
Bonaire
GF108
Market segment
Desktop
Desktop
Release date
March 2013
May 2012
Bus support
-
PCI Express 2.0
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Core clock speed
1000 MHz
700 MHz
CUDA cores
-
96
Floating-point performance
1,792 gflops
268.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,080 million
585 million
Pipelines / CUDA cores
896
96
Power consumption (TDP)
85 Watt
49 Watt
Maximum GPU temperature
-
98 °C
Texture fill rate
56.00
11.2 billion/sec
Memory type
GDDR5
DDR3
Maximum RAM amount
1 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
6000 MHz
1.8 GB/s
Memory bandwidth
96 GB/s
14.4 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
Dual Link DVI-I, HDMI, VGA
Multi monitor support
-
+
HDMI
+
+
HDCP
-
+
Maximum VGA resolution
-
2048x1536
Audio input for HDMI
-
Internal
DirectX
12 (12_0)
12 (11_0)
CUDA
-
+
OpenCL
2.0
1.1
OpenGL
4.6
4.2
Shader Model
6.3
5.1
Vulkan
1.2.131
N/A
3D Blu-Ray
-
+