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Gaming Performance Comparison

Recommended System Requirements
Game GeForce GT 445M v2 GeForce GTX 675M SLI
Halo: Reach 143% 37%
Cyberpunk 2077 950% 172%
Red Dead Redemption 2 664% 98%
Dragon Ball Z Kakarot 371% 22%
Call of Duty: Modern Warfare 664% 98%
Doom Eternal 557% 70%
Microsoft Flight Simulator 950% 172%
Grand Theft Auto VI 1068% 203%
FIFA 20 307% 6%
Need For Speed Heat 664% 98%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 675M SLI are massively better than the Nvidia GeForce GT 445M v2.

The GTX 675M has a 50 MHz higher core clock speed and 104 more Texture Mapping Units than the GT 445M. This results in the GTX 675M providing 65.7 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 675M has a 50 MHz higher core clock speed and 48 more Render Output Units than the GT 445M. This results in the GTX 675M providing 30.6 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 675M was released over a year more recently than the GT 445M, and so the GTX 675M is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GT 445M.

The GTX 675M has 3072 MB more video memory than the GT 445M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 675M also has superior memory performance overall.

The GTX 675M has 152 GB/sec greater memory bandwidth than the GT 445M, which means that the memory performance of the GTX 675M is massively better than the GT 445M.

The GeForce GT 445M v2 has 144 Shader Processing Units and the GeForce GTX 675M SLI has 768. However, the actual shader performance of the GT 445M is 164 and the actual shader performance of the GTX 675M is 952. The GTX 675M having 788 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 675M delivers a massively smoother and more efficient experience when processing graphical data than the GT 445M.

The GeForce GT 445M v2 requires 35 Watts to run and the GeForce GTX 675M SLI requires 200 Watts. The GTX 675M requires 165 Watts more than the GT 445M to run. The difference is significant enough that the GTX 675M may have an adverse affect on your yearly electricity bills in comparison to the GT 445M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed570 MHzvs620 MHz
Boost Clock-vs-
ArchitectureFermi GF106-N11E-GE-A1Fermi GF114 (x2)
OC Potential Fair vs None
Driver Support Poor vs -
Release Date03 Sep 2010vs22 Mar 2012
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
6
green tick vs -
1600x900
4.5
vs green tick
9.3
1920x1080
3.4
vs green tick
7.3
2560x1440
2.3
vs green tick
5.3
3840x2160 - green tick vs green tick -

GPU Memory

Memory1024 MBvs4096 MB
Memory Speed625 MHzvs750 MHz
Memory Bus128 Bitvs512 Bit
Memory TypeGDDR5vsGDDR5
Memory Bandwidth40GB/secvs192GB/sec
L2 Cache 384 KB green tick vs 0 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units144vs768
Actual Shader Performance8%vs46%
Technology40nmvs40nm
Texture Mapping Units24vs128
Texture Rate13.7 GTexel/svs79.4 GTexel/s
Render Output Units16vs64
Pixel Rate9.1 GPixel/svs39.7 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs0
DVI Connections1vs0
HDMI Connections1vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power35 Wattsvs200 Watts
Recommended PSU--

GPU Features

DirectX12.0vs11
Shader Model5.0vs5.0
Open GL4.5vs4.1
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-540M 2.53GHzvsIntel Core i7-3610QM 4-Core 2.3GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce GT 445M v2 is a Fast-Middle-Class Mobile 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 GF106-N11E-GE-A1 which has 3 Stream Multiprocessors activated and thus offers 144 Shader Processing Units, 24 TMUs and 16 ROPs. The Central Unit is clocked at 570MHz.

Memory
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 625MHz.

Features
DirectX 11.0 Support (11.0 Hardware Default) and support for Optimus, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

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

Performance
Gaming benchmarks put its performance almost on level with the desktop GeForce GT 450 v4.

System Suggestions
We recommend a decent processor (Intel Core i5 Mobile) and 4GB of RAM for a system with GeForce GT 445M v2.
GeForce GTX 675M SLI is a solution of two GeForce GTX 675M put together using NVIDIA'S SLI technology.
Check the page of GeForce GTX 675M 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, about 35% better than a single GeForce GTX 675M 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 GTX 675M.
Even the most demanding games will run at the highest settings.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-

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