Solved is NVIDIA GeForce GT640 better than ATI RADEON HD 7660D ?

I am using DriverFusion ,doesnt have to be Premium version,in safe mode,tab is driver family,check AMD drivers,delete restart,and clean-install your downloaded drivers,never had any issues,Nvidia user here,give it a shot!
 

My Computer

System One

  • OS
    W8 Pro 64bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Home...made ®
    CPU
    Intel i7 2600k
    Motherboard
    GA-Z68X-UD3P-B3
    Memory
    Corsair Vengeance 4x4Gb 1600 Mhz
    Graphics Card(s)
    ASUS GTX 680 DirectCU II SLI
    Sound Card
    onboard
    Monitor(s) Displays
    LG Flatron W2240S PN
    Screen Resolution
    1920X1080
    Hard Drives
    SanDisk Ultra Plus SATA 3 128GB X2

    Western Digital Caviar Blue 2x1TB + WD Caviar Black 1TB
    PSU
    Corsair RM 850 X
    Case
    Chieftec Dragon
    Cooling
    Thermalright Macho HR-02
    Keyboard
    Ivation mechanical backlit
    Mouse
    MS Optical 6000
    Internet Speed
    24 Mbps
    Browser
    Chrome
    Antivirus
    ESET NOD32 8.0.312.0
Video card most likely come with the driver software and yes AMD Catalyst is control panel for Video card and includes the drivers, but best just download newest because card may not have the newest drivers, get it here as said, whatever system is 32bit windows or 64bit.
Download Drivers
True never buy exact wattage you need for a PSU as other devices also draw power from it, said before matters how many other hardware devices.
YW
 

My Computer

System One

  • OS
    Windows 10 Pro 64bit
    Computer type
    PC/Desktop
    System Manufacturer/Model
    CyberPowerPC Gamer Xtreme 1502 (GX1502)
    CPU
    Intel Core i7 5820K 3.30 GHZ 64 bit 6-Core Processor
    Motherboard
    Gigabyte GA-X99-UD3
    Memory
    G.Skill 16GB Quad Channel DDR4-2400MHZ
    Graphics Card(s)
    EVGA GeForce GTX 970 SSC ACX 2.0+ DDR5 4GB
    Sound Card
    Creative Sound Blaster ZxR 5.1
    Monitor(s) Displays
    ASUS PA24Q 24" Pro Art IPS LCD/LED Backlit 1920x1200
    Screen Resolution
    1920x1200 16:10
    Hard Drives
    SAMSUNG 850 EVO 250GB SATA 6Gb/s 2.5" Internal SSD,
    Crucial MX100 512GB SATA 6Gb/s 2.5" Internal SSD,
    WD WD10EZEX-00RKKA0 1TB SATA 6Gb/s 3.5 Internal HDD
    PSU
    EVGA SuperNOVA 750 G2 750W 80 Plus Gold Full Modular
    Case
    AZZA Cosmas Black Gaming Case
    Cooling
    Cool Master Hyper 212 Evo Dual 120mm, ( 2) Noctua PWM 120mm Case Fans (1) Gelid PWM 120mm Blue LED
    Keyboard
    Logitech K800 Illumiated Wireless Keyboard
    Mouse
    Logitech M570 Wireless Trackball
    Internet Speed
    84mbps /94mbps
    Browser
    Mozilla Firefox 41.0.1 / Microsoft Edge/ IE 11
    Antivirus
    Norton Security 2015
    Other Info
    Pioneer BDR-209DBK 16x Blu-Ray Burner, LG 24x Dual Layer DVD Burner,
    StarTech Front Bay 22-in-1 USB 2.0 Internal Multi Media Memory Card Reader,Logitech Z906 5.1 Speaker system
Update: sapphiretech.com website only offers to download the: AMD Catalyst Software Suite - no drivers (as far as I can see)


SAPPHIRE TechnologyB0A096A09D87&tag=download&lang=eng

That is the driver. It includes the Catalyst Control Centre as well as the drivers (GPU and HDMI audio). Just make sure to run a custom install and uncheck the gaming app (can csaue problems).

Also the download from Sapphire will be identical to any available straight from AMD.
 

My Computer

System One

  • OS
    Windows 8.1 Pro
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Built by Me
    CPU
    FX 8350 @ 4.6
    Motherboard
    Asus M5A97 Evo
    Memory
    2 x 2 GB Kingston HyperX 1600
    Graphics Card(s)
    Sapphire R9 270X Dual-X
    Sound Card
    Xonar DGX
    Monitor(s) Displays
    Acer S232HL
    Screen Resolution
    1920x1080
    Hard Drives
    OCZ Vertex 3 120 GB
    Seagate 500 GB
    PSU
    Antec Earthwatts 650W
    Case
    Antec Three Hundred
    Cooling
    Cooler Master Hyper 212 EVO
    Keyboard
    Logitech Wave
    Mouse
    Logitech G500s
    Internet Speed
    35000/3000
Success and closing with many thanks

Okay stormy13 thanks very much for this advice really appreciate it

Update and Closure (26:06:2015):

Due to a Post strike the SAPPHIRE Radeon HD 7750 1GB has only just arrived by my son, but he has installed it, ran the AMD Catalyst Software Suite, and says everything is fine.

He is really very happy with the gaming improvement.

My deepest thanks to all for the help and advice – you have all been a tremendous help and support in this – Thanks so much

Closing this thread now
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Lenovo H430
    CPU
    i3-3220 3.3
    Memory
    8 GB
    Antivirus
    Bitdefender free
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