Radeon HD 8790M and HD Graphics 620 - video card comparison
Passmark - benchmark score Radeon HD 8790M vs HD Graphics 620
Radeon HD 8790M
1344
HD Graphics 620
963
Radeon HD 8790M
HD Graphics 620
Architecture
GCN (2011−2017)
Gen. 9.5 Kaby Lake (2015−2017)
GPU code name
Mars XTX
Kaby-Lake GT2
Market segment
Laptop
Laptop
Release date
November 2012
August 2016
Interface
MXM-A (3.0)
PCIe 3.0 x1
Supplementary power connectors
None
-
Boost clock speed
900 MHz
1050 MHz
Core clock speed
850 MHz
300 MHz
Floating-point performance
691.2 gflops
403.2 gflops
Manufacturing process technology
28 nm
14 nm
Number of transistors
950 million
189 million
Pipelines / CUDA cores
384
24
Power consumption (TDP)
unknown
15 Watt
Texture fill rate
21.60
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
64 GB/s
-
Shared memory
-
+
Display Connectors
No outputs
No outputs
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
-
+