Select any two GPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 620 Radeon X1900 Series
Red Dead Redemption 2 1546% 1585%
Cyberpunk 2077 2162% 2215%
Doom Eternal 1315% 1349%
Dragon Ball Z Kakarot 915% 939%
Call of Duty: Modern Warfare 1546% 1585%
Microsoft Flight Simulator 2162% 2215%
FIFA 20 777% 798%
Grand Theft Auto VI 2415% 2475%
Star Wars: Jedi - Fallen Order 2162% 2215%
Need For Speed Heat 1546% 1585%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 620 are marginally better than the AMD Radeon X1900 Series.

The GeForce GT 620 was released over three years more recently than the Radeon X1900 Series, 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 Radeon X1900 Series when running the latest games.

The GeForce GT 620 has 768 MB more video memory than the Radeon X1900 Series, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the Radeon X1900 Series has superior memory performance.

The Radeon X1900 Series has 49.6 GB/sec greater memory bandwidth than the GeForce GT 620, which means that the memory performance of the Radeon X1900 Series is noticeably better than the GeForce GT 620.

The GeForce GT 620 has 96 Shader Processing Units and the Radeon X1900 Series has 36. However, the actual shader performance of the GeForce GT 620 is 134 and the actual shader performance of the Radeon X1900 Series is 13. The GeForce GT 620 having 121 better shader performance is not particularly notable, as altogether the Radeon X1900 Series performs better when taking into account other relevant data.

The GeForce GT 620 requires 49 Watts to run but there is no entry for the Radeon X1900 Series. We would recommend a PSU with at least 300 Watts for the GeForce GT 620 and a PSU with at least 520 Watts for the Radeon X1900 Series. The Radeon X1900 Series has been recommended a PSU with 220 Watts more than the GeForce GT 620. The difference is significant enough that the Radeon X1900 Series 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 Speed700 MHzvs575 MHz
Boost Clock-vs-
ArchitectureFermi GF108-100-KB-A1R580
OC Potential Fair vs -
Driver Support Poor vs -
Release Date15 May 2012vs02 Jan 2006
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
4.1
green tick vs -
1600x900
2.8
green tick vs -
1920x1080
2.1
green tick vs -
2560x1440
1.5
green tick vs -
3840x2160 - green tick vs green tick -

GPU Memory

Memory1024 MBvs256 MB
Memory Speed900 MHzvs1000 MHz
Memory Bus64 Bitvs256 Bit
Memory TypeDDR3vsGDDR3
Memory Bandwidth14.4GB/secvs64GB/sec
L2 Cache 128 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units96vs36
Actual Shader Performance6%vs1%
Technology40nmvs-
Texture Mapping Units16vs-
Texture Rate11.2 GTexel/svs-
Render Output Units4vs-
Pixel Rate2.8 GPixel/svs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections1vs0
DVI Connections1vs2
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power49 Watts-
Recommended PSU300 Watts & 22 Ampsvs520 Watts & 25 Amps

GPU Features

DirectX12.0vs9.0c
Shader Model5.0vs3.0
Open GL4.5vs2.0
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Celeron G550 2.6GHz-
Recommended RAM4 GB-
Maximum Recommended Gaming Resolution1366x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GT 620 is an Entry-Level Graphics Card based on the first revision of the Fermi Architecture.

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.

GPU
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.

Memory
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.

Features
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.

Performance
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.
Radeon X1900 Series is not a GPU but instead a combination between Radeon X1900 GT, Radeon X1900 XT and Radeon X1900 XTX whose rank is a balance between the three and that exists for System Requirements purposes only.
Recommended CPU
-
Possible GPU Upgrades
-
GPU Variants
-

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