Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce 9800M GT SLI GeForce 8400M GT
Cyberpunk 2077 742% 6666%
Assassins Creed: Valhalla 670% 6089%
Call of Duty: Black Ops Cold War 645% 5888%
FIFA 21 325% 3313%
Microsoft Flight Simulator 645% 5888%
World of Warcraft: Shadowlands 1107% 9601%
Watch Dogs Legion 712% 6427%
Horizon: Zero Dawn 697% 6307%
Grand Theft Auto VI 1085% 9421%
Genshin Impact 742% 6666%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 9800M GT SLI are massively better than the Nvidia GeForce 8400M GT.

The 9800M GT was released over a year more recently than the GeForce 8400M GT, and so the 9800M GT is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce 8400M GT.

The 9800M GT has 512 MB more video memory than the GeForce 8400M GT, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the 9800M GT also has superior memory performance overall.

The 9800M GT has 83.2 GB/sec greater memory bandwidth than the GeForce 8400M GT, which means that the memory performance of the 9800M GT is much better than the GeForce 8400M GT.

The GeForce 9800M GT SLI has 192 Shader Processing Units and the GeForce 8400M GT has 16. However, the actual shader performance of the 9800M GT is 96 and the actual shader performance of the GeForce 8400M GT is 7. The 9800M GT having 89 better shader performance and an altogether better performance when taking into account other relevant data means that the 9800M GT delivers a massively smoother and more efficient experience when processing graphical data than the GeForce 8400M GT.

The 9800M GT transistor size technology is 15 nm (nanometers) smaller than the GeForce 8400M GT. This means that the 9800M GT is expected to run slightly cooler and achieve higher clock frequencies than the GeForce 8400M GT.

The GeForce 9800M GT SLI requires 130 Watts to run and the GeForce 8400M GT requires 14 Watts. The 9800M GT requires 116 Watts more than the GeForce 8400M GT to run. The difference is significant enough that the 9800M GT may have an adverse affect on your yearly electricity bills in comparison to the GeForce 8400M GT.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed500 MHzvs450 MHz
Boost Clock-vs-
ArchitectureG92 (x2)G86M
OC Potential - vs -
Driver Support - vs -
Release Date01 Jul 2008vs01 May 2007
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory1024 MBvs512 MB
Memory Speed800 MHzvs600 MHz
Memory Bus512 Bitvs128 Bit
Memory TypeGDDR3vsGDDR3
Memory Bandwidth102.4GB/secvs19.2GB/sec
L2 Cache 0 KB green tick vs -
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units192vs16
Actual Shader Performance5%vs0%
Technology65nmvs80nm
Texture Mapping Units-vs-
Texture Rate-vs-
Render Output Units-vs-
Pixel Rate-vs-
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs-
DVI Connections0vs-
HDMI Connections0vs-
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power130 Wattsvs14 Watts
Recommended PSU--

GPU Features

DirectX10vs10
Shader Model4.0vs4.0
Open GL2.1vs2.1
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended Processor--
Recommended RAM--
Maximum Recommended Gaming Resolution--

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewGeForce 9800M GT SLI is a solution of two GeForce 9800M GT put together using NVIDIA'S SLI technology.
Check the page of GeForce 9800M GT to know more about its chip.
As usual, SLI relies a lot on proper driver support and may suffer from micro-stuttering in lower frame rates (below 30). Benchmarks indicate the performance is overall, up to X% better than a single GeForce 9800M GT performing by itself but at times (depending whether or not the 3D game supports SLI or in the graphics driver) it performed worse than a single GeForce 9800M GT.
A few demanding games will run at the highest settings with fluent frame rates (30+) but overall most games will require reduced settings to be played optimally.
GeForce 8400M GT is an entry-class level GPU part of the 8000M Series released by NVIDIA, in 2007.
Very demanding games(e.g. Metro 2033, The Witcher 2) and even demanding games (e.g. Crysis 2, Skyrim V)are most certainly unplayable. Moderate and less demanding games, like Call of Duty: Black Ops, might be playable smoothly at the lowest settings.
Recommended CPU
-
-
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
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