Select any two GPUs for comparison

Gaming Performance Comparison

Recommended System Requirements
Game GeForce 9800M GT SLI Radeon HD 8790M
Cyberpunk 2077 742% 495%
Assassins Creed: Valhalla 670% 444%
Call of Duty: Black Ops Cold War 645% 426%
FIFA 21 325% 200%
Microsoft Flight Simulator 645% 426%
Watch Dogs Legion 712% 474%
World of Warcraft: Shadowlands 1107% 753%
Grand Theft Auto VI 1085% 737%
Horizon: Zero Dawn 697% 463%
Genshin Impact 742% 495%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8790M are significantly better than the Nvidia GeForce 9800M GT SLI.

The Radeon HD 8790M was released over three years more recently than the 9800M GT, and so the Radeon HD 8790M is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the 9800M GT when running the latest games.

The Radeon HD 8790M has 1024 MB more video memory than the 9800M GT, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the Radeon HD 8790M also has superior memory performance overall.

The 9800M GT has 38.4 GB/sec greater memory bandwidth than the Radeon HD 8790M, which means that the memory performance of the 9800M GT is noticeably better than the Radeon HD 8790M.

The GeForce 9800M GT SLI has 192 Shader Processing Units and the Radeon HD 8790M has 384. However, the actual shader performance of the 9800M GT is 96 and the actual shader performance of the Radeon HD 8790M is 294. The Radeon HD 8790M having 198 better shader performance is not particularly notable, as altogether the 9800M GT performs better when taking into account other relevant data.

The Radeon HD 8790M transistor size technology is 37 nm (nanometers) smaller than the 9800M GT. This means that the Radeon HD 8790M is expected to run much cooler and achieve higher clock frequencies than the 9800M GT.

The GeForce 9800M GT SLI requires 130 Watts to run and the Radeon HD 8790M requires 35 Watts. The 9800M GT requires 95 Watts more than the Radeon HD 8790M 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 Radeon HD 8790M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed500 MHzvs850 MHz
Boost Clock-vs900 MHz
ArchitectureG92 (x2)GCN 1.1 Mars XTX
OC Potential - vs Poor
Driver Support - vs Great
Release Date01 Jul 2008vs01 Apr 2013
GPU LinkGD LinkGD Link

Resolution Performance

1366x768 - vs green tick
1600x900 - vs green tick
1920x1080 - vs green tick
2560x1440 - vs green tick
3840x2160 - vs green tick

GPU Memory

Memory1024 MBvs2048 MB
Memory Speed800 MHzvs1000 MHz
Memory Bus512 Bitvs128 Bit
Memory TypeGDDR3vsGDDR5
Memory Bandwidth102.4GB/secvs64GB/sec
L2 Cache 0 KB vs green tick 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units192vs384
Actual Shader Performance5%vs14%
Texture Mapping Units-vs24
Texture Rate-vs20.4 GTexel/s
Render Output Units-vs8
Pixel Rate-vs6.8 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-

GPU Power Requirements

Max Power130 Wattsvs35 Watts
Recommended PSU--

GPU Features

Shader Model4.0vs5.0
Open GL2.1vs4.4
Open CL-vs-
Notebook GPUyesyes

GPU Supporting Hardware

Recommended Processor-Intel Core i5-3360M 2.8GHz
Recommended RAM-8 GB
Maximum Recommended Gaming Resolution-1600x900

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.
Radeon HD 8790M is a Fast-Middle-Class Mobile Graphics Card based on the Second Revision of the GCN Architecture.

The GCN 1.1 Release adds support for AMD's TrueAudio Technology which does calculations of audio effects "better" than the CPU and further improves the Powertune Technology.

It equips a GPU codenamed Mars XTX which has 6 Compute Units activated and thus offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. The Central Unit Initially Operates at 850MHz and goes up to 900MHz, in Turbo Mode.

The GPU accesses a 2GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The memory clock operates at 1000MHz.

DirectX 11.0 Support (11.0 Hardware Default) and support for Crossfire, PowerTune Technology, Eyefinity, App Acceleration, HD3D, ZeroCore Power and other technologies.

Power Consumption
With a rated board TDP of 35W, it is suited for 15" or larger laptops.

Gaming benchmarks put its performance slightly below NVIDIA's GeForce GTX 660M.

System Suggestions
We recommend a Decent Processor (Intel Core i5 Mobile) and 8GB of RAM for a system with Radeon HD 8790M.
Recommended CPU
Possible GPU Upgrades
GPU Variants