Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 8550D GeForce GT 620
Red Dead Redemption 2 1485% 1546%
Halo: Reach 404% 423%
Cyberpunk 2077 2078% 2162%
Call of Duty: Modern Warfare 1485% 1546%
Doom Eternal 1263% 1315%
Microsoft Flight Simulator 2078% 2162%
Grand Theft Auto VI 2322% 2415%
Dragon Ball Z Kakarot 878% 915%
Star Wars: Jedi - Fallen Order 2078% 2162%
Need For Speed Heat 1485% 1546%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8550D are marginally better than the Nvidia GeForce GT 620.

The Radeon HD 8550D has a 60 MHz higher core clock speed and 8 more Texture Mapping Units than the GeForce GT 620. This results in the Radeon HD 8550D providing 7 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The Radeon HD 8550D has a 60 MHz higher core clock speed and 4 more Render Output Units than the GeForce GT 620. This results in the Radeon HD 8550D providing 3.3 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon HD 8550D was released over a year more recently than the GeForce GT 620, and so the Radeon HD 8550D is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce GT 620.

The GeForce GT 620 has 1024 MB video memory, but the Radeon HD 8550D does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon HD 8550D has 256 Shader Processing Units and the GeForce GT 620 has 96. However, the actual shader performance of the Radeon HD 8550D is 108 and the actual shader performance of the GeForce GT 620 is 134. The GeForce GT 620 having 26 better shader performance is not particularly notable, as altogether the Radeon HD 8550D performs better when taking into account other relevant data.

The Radeon HD 8550D requires 65 Watts to run and the GeForce GT 620 requires 49 Watts. We would recommend a PSU with at least 450 Watts for the Radeon HD 8550D and a PSU with at least 300 Watts for the GeForce GT 620. The Radeon HD 8550D requires 16 Watts more than the GeForce GT 620 to run. The difference is not significant enough for the Radeon HD 8550D to have a noticeably larger impact on your yearly electricity bills than the GeForce GT 620.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed760 MHzvs700 MHz
Boost Clock844 MHzvs-
ArchitectureTerascale 2 Thames PROFermi GF108-100-KB-A1
OC Potential Poor vs Fair
Driver Support Poor vs Poor
Release Date18 Sep 2013vs15 May 2012
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
1600x900 - vs green tick
1920x1080 - vs green tick
2560x1440 - vs green tick
3840x2160 - green tick vs green tick -

GPU Memory

Memory-vs1024 MB
Memory Speed1067 MHzvs900 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth34.1GB/secvs14.4GB/sec
L2 Cache 256 KB green tick vs 128 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units256vs96
Actual Shader Performance5%vs6%
Texture Mapping Units24vs16
Texture Rate18.2 GTexel/svs11.2 GTexel/s
Render Output Units8vs4
Pixel Rate6.1 GPixel/svs2.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs1
DVI Connections0vs1
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power65 Wattsvs49 Watts
Recommended PSU450 Wattsvs300 Watts & 22 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.3vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3110M 2.4GHzvsIntel Celeron G550 2.6GHz
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 8550D is an embedded Graphics Card on the high-end Richland APUs A10-6500T
They offer 256 Shader Processing Units, 24 TMUs and 8 ROPs. The memory interface depends on whether or not the system's RAM is dual channelled.
While the central unit runs at 720MHz, since the GFX doesn't have dedicated memory, the bandwidth will depend on the system ram speed which can be up to 2133MHz (the max speed supported by the CPU). Therefore, the max boost clock is 844MHz.
Its performance is quite superior to Intel HD 4600 but only very slightly better than previous Radeon HD 7550D.
GeForce GT 620 is an Entry-Level Graphics Card based on the first revision of the Fermi Architecture.

The Fermi Architecture is manufactured with a 40nm technology and uses a technique known as Hot Clocking: The Shaders are clocked twice as fast as the Central Unit. While this leads to a reasonable performance boost, it causes enormous amounts of energy dissipation, leading, ultimately, to a significantly higher operating temperature.
Fermi is also the first GPU architecture with fully cached memory access which increases memory performance.

It equips a GPU codenamed Fermi GF108-100-KB-A1 which has 2 Stream Multiprocessors activated and thus offers 96 Shader Processing Units, 16 TMUs and 4 ROPs. The Central Unit is clocked at 700MHz.

The GPU accesses a 1GB frame buffer of DDR3, through a 128-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The Memory Clock Operates at 500MHz.

DirectX 11.0 Support (11.0 Hardware Default) and support for 3D Vision Surround, PhysX, Realtime Raytracing and other technologies.

Cooling Solution
The Cooling Solution consists of a Single-Fan.

Power Consumption
With a rated board TDP of 49W, it requires at least a 300W PSU and it relies entirely on the PCI Slot for power, meaning no extra connectors are required.

Gaming benchmarks put its performance is somewhat better than Radeon HD 7470.

System Suggestions
We recommend a modest processor (Intel Celeron) and 4GB of RAM for a system with GeForce GT 620.
Recommended CPU
Possible GPU Upgrades
GPU Variants