Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game Radeon X1650 PowerColor 256MB Edition GeForce GT 620
Red Dead Redemption 2 2616% 1546%
Doom Eternal 2235% 1315%
Cyberpunk 2077 3631% 2162%
Call of Duty: Modern Warfare 2616% 1546%
Dragon Ball Z Kakarot 1575% 915%
Microsoft Flight Simulator 3631% 2162%
Star Wars: Jedi - Fallen Order 3631% 2162%
Grand Theft Auto VI 4050% 2415%
Need For Speed Heat 2616% 1546%
Warcraft 3: Reforged 5% 37%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 620 are significantly better than the AMD Radeon X1650 PowerColor 256MB Edition.

The GeForce GT 620 was released over three years more recently than the X1650 PowerColor, and so the GeForce GT 620 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the X1650 PowerColor when running the latest games.

The GeForce GT 620 has 768 MB more video memory than the X1650 PowerColor, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GeForce GT 620 also has superior memory performance overall.

The GeForce GT 620 has 8 GB/sec greater memory bandwidth than the X1650 PowerColor, which means that the memory performance of the GeForce GT 620 is marginally better than the X1650 PowerColor.

The Radeon X1650 PowerColor 256MB Edition has 12 Shader Processing Units and the GeForce GT 620 has 96. However, the actual shader performance of the X1650 PowerColor is 4 and the actual shader performance of the GeForce GT 620 is 134. The GeForce GT 620 having 130 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce GT 620 delivers a slightly smoother and more efficient experience when processing graphical data than the X1650 PowerColor.

The GeForce GT 620 requires 49 Watts to run but there is no entry for the X1650 PowerColor. We would recommend a PSU with at least 350 Watts for the X1650 PowerColor and a PSU with at least 300 Watts for the GeForce GT 620. The X1650 PowerColor has been recommended a PSU with 50 Watts more than the GeForce GT 620. The difference is significant enough that the X1650 PowerColor may have a slight adverse affect on your yearly electricity bills in comparison to the GeForce GT 620.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed500 MHzvs700 MHz
Boost Clock-vs-
ArchitectureRV530Fermi GF108-100-KB-A1
OC Potential - vs Fair
Driver Support - vs Poor
Release Date01 Feb 2007vs15 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

Memory256 MBvs1024 MB
Memory Speed400 MHzvs900 MHz
Memory Bus64 Bitvs64 Bit
Memory TypeDDR2vsDDR3
Memory Bandwidth6.4GB/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 Units12vs96
Actual Shader Performance0%vs6%
Texture Mapping Units-vs16
Texture Rate-vs11.2 GTexel/s
Render Output Units-vs4
Pixel Rate-vs2.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs1
DVI Connections1vs1
HDMI Connections0vs1
DisplayPort Connections-vs-

GPU Power Requirements

Max Power-49 Watts
Recommended PSU350 Wattsvs300 Watts & 22 Amps

GPU Features

Shader Model3.0vs5.0
Open GL2.0vs4.5
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 X1650 PowerColor 256MB Edition is a special edition of the Radeon X1650.
This version features a 64 bits bus, instead of 128 bits and it's equipped with only 256MB. The core and memory clocks are clocked at the same speed. Therefore, the performance is inferior to the standard Radeon X1650.
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