Windows 8 and 8.1 Forums


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

  1. #11


    Posts : 67
    Windows 8.1


    main games are: War Thunder / World of Tanks / Minecraft / Space Engineers (Steam) / Kerbal Space Program / and some other (Steam) Games - all under 16 age limit (son 15 this week)

    and thanks jds63

      My System SpecsSystem Spec

  2. #12


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Quote Originally Posted by xyz View Post
    main games are: War Thunder / World of Tanks / Minecraft / Space Engineers (Steam) / Kerbal Space Program / and some other (Steam) Games - all under 16 age limit (son 15 this week)

    and thanks jds63
    Only seems like World of tanks and Space Engineers may require slightly better video card. Do not know if i missed something here, but what was main reasons you felt the PC needed a better card ? Slow (freeze up) or bad performance in games ? These days mature or not, newer games, yes may require better card. When or before buying game, look at system requirements online. Your welcome
      My System SpecsSystem Spec

  3. #13


    Posts : 67
    Windows 8.1


    The computer was bought by an Aunt, and someone told her it was better to have a Graphic Card installed instead of using the Onboard ATI RADEON HD 7660D Graphics, so, unwilling to invest much more money, she chose to have installed at purchase a - Radeon HD 8350 1GB DDR3 650 Mhz (actually they installed in PCe slot a: - HIS ATI Radeon HD5450 Silence) – but the computer runs very slow (lagging)/ bad performance in games (even in lowest settings).


    So what I was trying to figure out was: if we (actually my son would have to do it because he lives with his mother elsewhere) took the HIS ATI Radeon HD5450 Silence Graphic Card out - would it be good enough to just let it run on the Onboard ATI RADEON HD 7660D Graphics – or would it be better to buy the Sapphire ATI HD 7750 and install this?

    In the future we can see about beefing up the computer properly for games – it’s just trying to figure the best option for now.


    (Don’t want my son messing about inside the computer too much, so wanted to just do the right thing in the one move = just remove installed card/and use Onboard ATI RADEON HD 7660D - or second option = remove and refit with: Sapphire ATI HD 7750)

    (or maybe an ASUS Radeon HD 6850 [EAH6850 DC/2DIS/1GD5/V2] which I can get secondhand without extras [whatever those are anyway] - just the card)
    Last edited by xyz; 18 Jun 2015 at 02:02.
      My System SpecsSystem Spec

  4. #14


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    These Radeon cards are made by different manufacturers some changes from model numbers in amount of RAM, connections and quality.
    Definitely the HD 7660D is better then the HD 5450. The HD6850 is better then HD 7660D but again requires a 500W power supply over 400W have now. Comes to video cards this is one of the things you need to look at the system requirements of the card before purchase.

    Something just to look at benchmark for price and performance, see HD7660D AMD Radeon HD 7660D Review - Performance

    Say do not want to mess to much inside the case, sometimes this is also something need to decide when buy a PC then what it is going to be used for, e.g. Gaming, ...etc...

    Also as said it's the kind of games you are going to buy that may require more from hardware components in the system. Newer games tend to be now more demanding, older games are less demanding.
      My System SpecsSystem Spec

  5. #15


    Posts : 67
    Windows 8.1


    ah okay, the HD6850 needs 500 W - PITY, was going to get this for my son (couldn't find the info about how much W needed - often not shown on sites that sell these - such as Amazon)

    and WOW complicated - found this:How much wattage do I need? - Power Supplies - Components won't pretend I fully understand it all - get part of it though

    so I am back to Sapphire ATI HD 7750 - or just reverting back to onboard HD 7660D

    ( I think 400 W is not enough for Asus ATI Radeon HD5770 , but????)
      My System SpecsSystem Spec

  6. #16


    N.Y.
    Posts : 2,214
    Windows 10 Pro 64bit


    Quote Originally Posted by xyz View Post
    ah okay, the HD6850 needs 500 W - PITY, was going to get this for my son (couldn't find the info about how much W needed - often not shown on sites that sell these - such as Amazon)

    and WOW complicated - found this:How much wattage do I need? - Power Supplies - Components won't pretend I fully understand it all - get part of it though

    so I am back to Sapphire ATI HD 7750 - or just reverting back to onboard HD 7660D

    ( I think 400 W is not enough for Asus ATI Radeon HD5770 , but????)
    Best and easiest ways when you google it, put exact model number after that just put system requirements. Go directly to manufacturer's site who makes model you want. As even though it is an ATI/AMD chipset in card so many manufacturer's make this card, ASUS and so on.......
    Alot of time differences in card with RAM is either ddr5, ddr3 or how many Megabytes difference some have.

    Basically yes, HD 7750 is slightly better then HD 7660D requires 400W Power Supply with 18amps o 12v rail. Another thing need to know, amperage best if i even knew model of Power supply. Asus ATI Radeon HD5770 ......
    ATI Radeon

    Then can matter to amount of other hardware you have on a PC for amount of wattage needed always go for bit more then card requires, never too exact.
      My System SpecsSystem Spec

  7. #17


    Posts : 67
    Windows 8.1

    one last question


    Well, I certainly have learnt a lot these last days, my sincere thanks to jds63, and everyone else that replied, really appreciate it a lot.

    I checked out the PSU, found out that it is some crappy China thing (400W 8cm OEM SI) – that will have to be changed in the future – but for now will have to do!

    Have gone for the: Sapphire HD7750 (it will run on the 400W or even lower I have read), it’s an Amazon Warehouse Deals one, so I can just about afford it. One thing I did notice – which I very sincerely hope won’t be a problem, or reduce performance – is that the HD7750 is a PCIe 3.0 Graphic Card, while the ASUS F2 A85 Pro has PCIe 2.0 slots!!

    My final question in this saga is about the Graphics Card driver:

    Do you (usually) get a driver with it, or does it update automatically (via Windows 8.1), or?

    My son will have to do all this (unless he finds someone to do it for him – which is unlikely) so what it the best advice, or way of going about it?


    P.S.: I did check the makers, AMD website, for the needed PSU, but couldn’t find this information at all, but found it elsewhere - and you had already told me that it was okay. So the makers are not much better for such information!

    AMD Radeon
    Last edited by xyz; 19 Jun 2015 at 10:07.
      My System SpecsSystem Spec

  8. #18


    Posts : 123
    Win8.1


    You can get drivers at the "Sapphire" website http://www.sapphiretech.com/download.asp?lang=eng
    or from AMD Download Drivers
      My System SpecsSystem Spec

  9. #19


    Don't hesitate to spend on a branded,well known,at least,i repeat at least Bronze certified PSU.
    Get that machine a decent,i would say about 500 to 600 Watt power supply,a bit of overhead will not harm,it will sufficiently support most,if not all of your GPU upgrades for the next four or five years.
    It is THE most underestimated and in the same time THE most crucial computer component,dont just take MY word for it,do your research,discuss it with any PC builder,it's what is keeping all bits and parts "healthy,alive and kicking".
    GPU choice? SAPPHIRE Radeon HD 7750 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready Video Card ( 11202-00-20G) - Newegg.com Review tab
      My System SpecsSystem Spec

  10. #20


    Posts : 67
    Windows 8.1


    Okay thanks a lot CountryBumkin and Proudtobegreek

    Yes I will eventually update PSU to a better quality and higher Watt, like you say 600W. And yes, I am now fully aware of the importance of this - I had no idea before - thanks to you all - and many thanks for teaching me so much.

    Can my son use the AMD Software = Automatically Detect and Install Your Driver (installing this Software before he starts the Graphic Card exchange process)?


    Or should he download and install the new driver for the HD7750 before he starts (or after)? (and when do you remove the old driver (before or after)?

    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
      My System SpecsSystem Spec

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