Radeon HD 7770 and HD Graphics 620 - video card comparison
Passmark - benchmark score Radeon HD 7770 vs HD Graphics 620
Radeon HD 7770
2235
HD Graphics 620
963
Radeon HD 7770
HD Graphics 620
Architecture
GCN (2011−2017)
Gen. 9.5 Kaby Lake (2015−2017)
GPU code name
Cape Verde
Kaby-Lake GT2
Market segment
Desktop
Laptop
Release date
February 2012
August 2016
Interface
PCIe 3.0 x16
PCIe 3.0 x1
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
1050 MHz
Core clock speed
1000 MHz
300 MHz
Floating-point performance
-
403.2 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
1,500 million
189 million
Pipelines / CUDA cores
640
24
Power consumption (TDP)
80 Watt
15 Watt
Texture fill rate
40.00
25.20
Memory type
GDDR5
DDR3L/LPDDR3/LPDDR4
Maximum RAM amount
2 GB
32 GB
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
4500 MHz
System Shared
Memory bandwidth
72 GB/s
-
Shared memory
-
+
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
12 (12_1)
OpenCL
1.2
2.1
OpenGL
4.6
4.6
Shader Model
5.1
6.4
Vulkan
1.2.131
+
Quick Sync
-
+