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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 650M Mac 1GB Edition GeForce 9800M GT SLI
Cyberpunk 2077 465% 742%
Assassins Creed: Valhalla 417% 670%
Call of Duty: Black Ops Cold War 400% 645%
Watch Dogs Legion 445% 712%
FIFA 21 185% 325%
Microsoft Flight Simulator 400% 645%
Godfall 818% 1267%
Grand Theft Auto VI 695% 1085%
World of Warcraft: Shadowlands 710% 1107%
Genshin Impact 465% 742%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GT 650M Mac 1GB Edition are significantly better than the Nvidia GeForce 9800M GT SLI.

The GT 650M was released over three years more recently than the 9800M GT, and so the GT 650M 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 GeForce GT 650M Mac 1GB Edition and the GeForce 9800M GT SLI have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The 9800M GT has 22.1 GB/sec greater memory bandwidth than the GT 650M, which means that the memory performance of the 9800M GT is slightly better than the GT 650M.

The GeForce GT 650M Mac 1GB Edition has 384 Shader Processing Units and the GeForce 9800M GT SLI has 192. However, the actual shader performance of the GT 650M is 346 and the actual shader performance of the 9800M GT is 96. The GT 650M having 250 better shader performance and an altogether better performance when taking into account other relevant data means that the GT 650M delivers a marginally smoother and more efficient experience when processing graphical data than the 9800M GT.

The GT 650M transistor size technology is 37 nm (nanometers) smaller than the 9800M GT. This means that the GT 650M is expected to run much cooler and achieve higher clock frequencies than the 9800M GT.

The GeForce GT 650M Mac 1GB Edition requires 45 Watts to run and the GeForce 9800M GT SLI requires 130 Watts. The 9800M GT requires 85 Watts more than the GT 650M 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 GT 650M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed900 MHzvs500 MHz
Boost Clock-vs-
ArchitectureKepler GK107-N13P-GT-W-A2G92 (x2)
OC Potential Poor vs -
Driver Support Good vs -
Release Date12 Jul 2012vs01 Jul 2008
GPU LinkGD LinkGD Link

Resolution Performance

green tick vs -
green tick vs -
green tick vs -
green tick vs -
green tick vs -

GPU Memory

Memory1024 MBvs1024 MB
Memory Speed1254 MHzvs800 MHz
Memory Bus128 Bitvs512 Bit
Memory TypeGDDR5vsGDDR3
Memory Bandwidth80.3GB/secvs102.4GB/sec
L2 Cache 256 KB green tick vs 0 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units384vs192
Actual Shader Performance17%vs5%
Texture Mapping Units32vs-
Texture Rate28.8 GTexel/svs-
Render Output Units16vs-
Pixel Rate14.4 GPixel/svs-

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections0vs-

GPU Power Requirements

Max Power45 Wattsvs130 Watts
Recommended PSU--

GPU Features

Shader Model5.0vs4.0
Open GL4.5vs2.1
Open CL-vs-
Notebook GPUyesyes

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3360M 2.8GHz-
Recommended RAM8 GB-
Maximum Recommended Gaming Resolution1600x900-

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GT 650M Mac 1GB Edition is a Fast-Middle-Class Mobile Graphics Card based on the first revision of the Kepler Architecture.

The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU.

It equips a GPU Codenamed GK107 which has 2 Stream Multiprocessors activated and thus offers 384 Shader Processing Units, 32 TMUs and 16 ROPs. The Central Unit is clocked at 900MHz.

The GPU accesses a 1GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 1254MHz.

Power Consumption
With a rated board TDP of 45W, it is suited for average sized laptops.

Gaming benchmarks indicate its performance is similar to GeForce GTX 660M.

System Suggestions
We recommend a decent processor and 8GB of RAM for a system with GeForce GT 650M Mac 1GB Edition.
GeForce 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.
Recommended CPU
Possible GPU Upgrades
GPU Variants