Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 420 GeForce 6800 Ultra
Red Dead Redemption 2 2153% 2157%
Halo: Reach 616% 617%
Cyberpunk 2077 2995% 3001%
Call of Duty: Modern Warfare 2153% 2157%
Doom Eternal 1837% 1841%
Microsoft Flight Simulator 2995% 3001%
Grand Theft Auto VI 3342% 3349%
Dragon Ball Z Kakarot 1289% 1292%
Star Wars: Jedi - Fallen Order 2995% 3001%
Need For Speed Heat 2153% 2157%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 420 are marginally better than the Nvidia GeForce 6800 Ultra.

The GeForce GT 420 was released over three years more recently than the GeForce 6800 Ultra, and so the GeForce GT 420 is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GeForce 6800 Ultra when running the latest games.

The GeForce GT 420 has 1792 MB more video memory than the GeForce 6800 Ultra, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The GeForce 6800 Ultra has 6.4 GB/sec greater memory bandwidth than the GeForce GT 420, which means that the memory performance of the GeForce 6800 Ultra is marginally better than the GeForce GT 420.

The GeForce GT 420 has 48 Shader Processing Units and the GeForce 6800 Ultra has 22. However, the actual shader performance of the GeForce GT 420 is 67 and the actual shader performance of the GeForce 6800 Ultra is 9. The GeForce GT 420 having 58 better shader performance is not particularly notable, as altogether the GeForce 6800 Ultra performs better when taking into account other relevant data.

The GeForce GT 420 requires 50 Watts to run and the GeForce 6800 Ultra requires 124 Watts. We would recommend a PSU with at least 300 Watts for the GeForce GT 420. The GeForce 6800 Ultra requires 74 Watts more than the GeForce GT 420 to run. The difference is significant enough that the GeForce 6800 Ultra may have an adverse affect on your yearly electricity bills in comparison to the GeForce GT 420.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed700 MHzvs400 MHz
Boost Clock-vs-
ArchitectureFermi GF108-200-A1NV40/NV45
OC Potential Fair vs -
Driver Support Poor vs -
Release Date03 Sep 2010vs01 Mar 2005
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
3.2
green tick vs -
1600x900
2.4
green tick vs -
1920x1080
1.8
green tick vs -
2560x1440
1.3
green tick vs -
3840x2160 - green tick vs green tick -

GPU Memory

Memory2048 MBvs256 MB
Memory Speed900 MHzvs550 MHz
Memory Bus128 Bitvs256 Bit
Memory TypeDDR3vsGDDR3
Memory Bandwidth28.8GB/secvs35.2GB/sec
L2 Cache 256 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units48vs22
Actual Shader Performance3%vs0%
Technology40nmvs-
Texture Mapping Units4vs-
Texture Rate2.8 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 Power50 Wattsvs124 Watts
Recommended PSU300 Watts & 22 Amps-

GPU Features

DirectX12.0vs9.0c
Shader Model5.0vs3.0
Open GL4.5vs1.5
Open CL-vs-
Notebook GPUnono
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Celeron E3400 Dual-Core 2.6GHz-
Recommended RAM4 GB-
Maximum Recommended Gaming Resolution1366x768-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GT 420 is an OEM only 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 GF108-200-A1 which has 1 Stream Multiprocessors activated and thus offers 48 Shader Processing Units, 4 TMUs and 4 ROPs. The Central Unit is clocked at 700MHz.

Memory
The GPU accesses a 2GB 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 900MHz.

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 50W, 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 around of a Radeon HD 5450.

System Suggestions
We recommend a modest processor (Intel Celeron) and 4GB of RAM for a system with GeForce GT 430.
The groundbreaking new NVIDIA GeForce 6800 graphics processing units (GPUs) and their revolutionary technologies power worlds where reality and fantasy meet; worlds in which new standards are set for visual realism and quality, performance, and video functionality. The GeForce 6800 GPUs deliver powerful, elegant graphics to drench your senses, immersing you in unparalleled worlds of visual effects for the ultimate PC experience.
Recommended CPU
-
Possible GPU Upgrades
-
GPU Variants
-

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