Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 620 Radeon X850 XT
Red Dead Redemption 2 1546% 1544%
Cyberpunk 2077 2162% 2158%
Dragon Ball Z Kakarot 915% 914%
Microsoft Flight Simulator 2162% 2158%
Call of Duty: Modern Warfare 1546% 1544%
Doom Eternal 1315% 1313%
FIFA 20 777% 776%
Grand Theft Auto VI 2415% 2412%
Need For Speed Heat 1546% 1544%
Halo: Reach 423% 422%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon X850 XT are marginally better than the Nvidia GeForce GT 620.

The GeForce GT 620 was released over three years more recently than the Radeon X850 XT, 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 X850 XT when running the latest games.

The GeForce GT 620 has 768 MB more video memory than the Radeon X850 XT, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the Radeon X850 XT has superior memory performance.

The Radeon X850 XT has 54.7 GB/sec greater memory bandwidth than the GeForce GT 620, which means that the memory performance of the Radeon X850 XT is much better than the GeForce GT 620.

The GeForce GT 620 has 96 Shader Processing Units and the Radeon X850 XT has 16. However, the actual shader performance of the GeForce GT 620 is 134 and the actual shader performance of the Radeon X850 XT is 5. The GeForce GT 620 having 129 better shader performance is not particularly notable, as altogether the Radeon X850 XT 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 X850 XT. We would recommend a PSU with at least 300 Watts for the GeForce GT 620.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed700 MHzvs520 MHz
Boost Clock-vs-
ArchitectureFermi GF108-100-KB-A1R480
OC Potential Fair vs -
Driver Support Poor vs -
Release Date15 May 2012vs01 Dec 2004
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 MHzvs1080 MHz
Memory Bus64 Bitvs256 Bit
Memory TypeDDR3vsGDDR3
Memory Bandwidth14.4GB/secvs69.1GB/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 Units96vs16
Actual Shader Performance6%vs0%
Technology40nmvs-
Texture Mapping Units16vs-
Texture Rate11.2 GTexel/svs-
Render Output Units4vs-
Pixel Rate2.8 GPixel/svs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2048x1536
VGA Connections1vs0
DVI Connections1vs2
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power49 Watts-
Recommended PSU300 Watts & 22 Amps-

GPU Features

DirectX12.0vs9.0b
Shader Model5.0vs2.0
Open GL4.5vs2.0
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsno
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.
The Radeon X800 'R430'-based 110 nanometer series was introduced at the end of 2004 along with ATI's new X850 cards. The X800 was designed to replace the position X700 XT failed to secure, with 12 pipelines and a 256-bit RAM bus. The card more than surpassed the 6600GT with performance similar to that of the GeForce 6800. A close relative, the new X800 XL, was positioned to dethrone NVIDIA's GeForce 6800 GT with higher memory speeds and a full 16 pipelines to boost performance. R430 was unable to reach high clock speeds, being mainly designed to reduce the cost per GPU, and so a new top-of-the-line core was still needed. The new high-end R4x0-generation arrived with the X850 series, equipped with various core tweaks for slightly higher performance than the 'R420'-based X800 series. The 'R480'-based X850 line was available in 3 forms: the X850 Pro, the X850 XT, and the X850 XT Platinum Edition, and was built on the reliable high-performance 130 nm Low-K process.
Recommended CPU
-
Possible GPU Upgrades
-
GPU Variants
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