Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 650 Gigabyte OC 1GB Edition GeForce GT 620
Cyberpunk 2077 372% 1638%
Assassins Creed: Valhalla 332% 1490%
Call of Duty: Black Ops Cold War 318% 1438%
Watch Dogs Legion 356% 1577%
Godfall 667% 2723%
FIFA 21 138% 777%
Microsoft Flight Simulator 318% 1438%
Grand Theft Auto VI 565% 2346%
World of Warcraft: Shadowlands 577% 2392%
Genshin Impact 372% 1638%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 650 Gigabyte OC 1GB Edition are massively better than the Nvidia GeForce GT 620.

The GTX 650 has a 410 MHz higher core clock speed and 16 more Texture Mapping Units than the GeForce GT 620. This results in the GTX 650 providing 24.3 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 GTX 650 has a 410 MHz higher core clock speed and 12 more Render Output Units than the GeForce GT 620. This results in the GTX 650 providing 15 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 GTX 650 was released less than a year after the GeForce GT 620, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce GTX 650 Gigabyte OC 1GB Edition and the GeForce GT 620 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GTX 650 has 65.6 GB/sec greater memory bandwidth than the GeForce GT 620, which means that the memory performance of the GTX 650 is much better than the GeForce GT 620.

The GeForce GTX 650 Gigabyte OC 1GB Edition has 384 Shader Processing Units and the GeForce GT 620 has 96. However, the actual shader performance of the GTX 650 is 426 and the actual shader performance of the GeForce GT 620 is 134. The GTX 650 having 292 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 650 delivers a massively smoother and more efficient experience when processing graphical data than the GeForce GT 620.

The GTX 650 transistor size technology is 12 nm (nanometers) smaller than the GeForce GT 620. This means that the GTX 650 is expected to run slightly cooler and achieve higher clock frequencies than the GeForce GT 620.

The GeForce GT 620 requires 49 Watts to run but there is no entry for the GTX 650. We would recommend a PSU with at least 400 Watts for the GTX 650 and a PSU with at least 300 Watts for the GeForce GT 620. The GTX 650 has been recommended a PSU with 100 Watts more than the GeForce GT 620. The difference is significant enough that the GTX 650 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 Speed1110 MHzvs700 MHz
Boost Clock-vs-
ArchitectureKepler GK107-450-A2Fermi GF108-100-KB-A1
OC Potential Poor vs Fair
Driver Support Good vs Poor
Release Date01 Sep 2012vs15 May 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768 - vs green tick
4.1
1600x900
5.9
green tick vs
2.8
1920x1080
4.9
green tick vs
2.1
2560x1440
3.1
green tick vs
1.5
3840x2160
2.1
green tick vs -

GPU Memory

Memory1024 MBvs1024 MB
Memory Speed1250 MHzvs900 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth80GB/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%
Comparison

GPU Display

Shader Processing Units384vs96
Actual Shader Performance21%vs6%
Technology28nmvs40nm
Texture Mapping Units32vs16
Texture Rate35.5 GTexel/svs11.2 GTexel/s
Render Output Units16vs4
Pixel Rate17.8 GPixel/svs2.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections1vs1
DVI Connections2vs1
HDMI Connections1vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power-49 Watts
Recommended PSU400 Watts & 33 Ampsvs300 Watts & 22 Amps

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-3220 3.3GHzvsIntel Celeron G550 2.6GHz
Recommended RAM8 GBvs4 GB
Maximum Recommended Gaming Resolution1600x900vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce GTX 650 Gigabyte OC 1GB Edition is a special edition of the fast-middle-class GeForce GTX 650 1GB.
This special edition comes overclocked out of the box to 1110MHz and features a custom-designed 10 cm cooler.
Benchmarks indicate a 4% performance boost when compared to the reference card and so this GPU is suitable for medium to high settings on most demanding games but not with extreme resolutions.
Overview
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.
Recommended CPU
Possible GPU Upgrades
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GPU Variants
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