Radeon HD 4770 and HD Graphics 620 - video card comparison
Passmark - benchmark score Radeon HD 4770 vs HD Graphics 620
Radeon HD 4770
935
HD Graphics 620
963
Radeon HD 4770
HD Graphics 620
Architecture
TeraScale (2005−2013)
Gen. 9.5 Kaby Lake (2015−2017)
GPU code name
RV740
Kaby-Lake GT2
Market segment
Desktop
Laptop
Release date
April 2009
August 2016
Interface
PCIe 2.0 x16
PCIe 3.0 x1
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
1050 MHz
Core clock speed
750 MHz
300 MHz
Floating-point performance
960.0 gflops
403.2 gflops
Manufacturing process technology
40 nm
14 nm
Number of transistors
826 million
189 million
Pipelines / CUDA cores
640
24
Power consumption (TDP)
80 Watt
15 Watt
Texture fill rate
24.00
25.20
Memory type
GDDR5
DDR3L/LPDDR3/LPDDR4
Maximum RAM amount
512 MB
32 GB
Memory bus width
128 Bit
64/128 Bit
Memory clock speed
3200 MHz
System Shared
Memory bandwidth
51.2 GB/s
-
Shared memory
-
+
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
10.1 (10_1)
12 (12_1)
OpenCL
1.1
2.1
OpenGL
3.3
4.6
Shader Model
4.1
6.4
Vulkan
N/A
+
Quick Sync
-
+