Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 8670D GeForce GT 620
Red Dead Redemption 2 1026% 1546%
Halo: Reach 258% 423%
Cyberpunk 2077 1447% 2162%
Call of Duty: Modern Warfare 1026% 1546%
Doom Eternal 868% 1315%
Microsoft Flight Simulator 1447% 2162%
Grand Theft Auto VI 1621% 2415%
Dragon Ball Z Kakarot 595% 915%
Star Wars: Jedi - Fallen Order 1447% 2162%
Need For Speed Heat 1026% 1546%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8670D are significantly better than the Nvidia GeForce GT 620.

The Radeon HD 8670D has a 144 MHz higher core clock speed and 8 more Texture Mapping Units than the GeForce GT 620. This results in the Radeon HD 8670D providing 9.1 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 8670D has a 144 MHz higher core clock speed and 4 more Render Output Units than the GeForce GT 620. This results in the Radeon HD 8670D providing 4 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 8670D was released over a year more recently than the GeForce GT 620, and so the Radeon HD 8670D 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 8670D does not have an entry, so the two GPUs cannot be reliably compared in this area.

The Radeon HD 8670D has 384 Shader Processing Units and the GeForce GT 620 has 96. However, the actual shader performance of the Radeon HD 8670D is 211 and the actual shader performance of the GeForce GT 620 is 134. The Radeon HD 8670D having 77 better shader performance and an altogether better performance when taking into account other relevant data means that the Radeon HD 8670D delivers a noticeably smoother and more efficient experience when processing graphical data than the GeForce GT 620.

The Radeon HD 8670D transistor size technology is 8 nm (nanometers) smaller than the GeForce GT 620. This means that the Radeon HD 8670D is expected to run very slightly cooler and achieve higher clock frequencies than the GeForce GT 620.

The Radeon HD 8670D requires 100 Watts to run and the GeForce GT 620 requires 49 Watts. We would recommend a PSU with at least 300 Watts for the GeForce GT 620, but we do not have a recommended PSU wattage for the Radeon HD 8670D. The Radeon HD 8670D requires 51 Watts more than the GeForce GT 620 to run. The difference is significant enough that the Radeon HD 8670D may have an adverse affect on your yearly electricity bills in comparison to the GeForce GT 620.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed844 MHzvs700 MHz
Boost Clock-vs-
ArchitectureRichlandFermi GF108-100-KB-A1
OC Potential - vs Fair
Driver Support - vs Poor
Release Date01 Jun 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

MemoryN/Avs1024 MB
Memory Speed1067 MHzvs900 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth34.1GB/secvs14.4GB/sec
L2 Cache - vs green tick 128 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units384vs96
Actual Shader Performance10%vs6%
Texture Mapping Units24vs16
Texture Rate20.3 GTexel/svs11.2 GTexel/s
Render Output Units8vs4
Pixel Rate6.8 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 Power100 Wattsvs49 Watts
Recommended PSU-300 Watts & 22 Amps

GPU Features

Shader Model5.0vs5.0
Open GL4.1vs4.5
Open CL-vs-
Notebook GPUnono

GPU Supporting Hardware

Recommended Processor-Intel Celeron G550 2.6GHz
Recommended RAM-4 GB
Maximum Recommended Gaming Resolution-1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 8670D is an embedded Graphics Card on the high-end Richland APUs A10-6700 and A10-6800K.
They offer 384 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 844MHz, 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 operating memory clock is 1067MHz.
Its performance is quite superior to Intel HD 4600 but only very slightly better than previous Radeon HD 7660D.
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