Computer Hope

Hardware => Hardware => Topic started by: IPDO on October 17, 2013, 02:28:50 AM

Title: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 02:28:50 AM
I would like to buy a graphics card, but not sure which one to buy.
I dont know which graphics card are supported to my computer.
Need your advice.
For more information see the attachments.

ADMIN-PC.txt : computer details

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Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 03:17:50 AM
You'll need a PCI-E graphics card.
What power supply do you have?  (Make & model)
What's the intended purpose of the card, is it for gaming?
What's your budget?
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 03:19:47 AM
I am interested in this xfx nvidia gt n 640 4gb ddr3 graphics card.

http://www.flipkart.com/xfx-nvidia-gt-n-640-4-gb-ddr3-graphics-card/p/itmdhkpzuznk23c7?pid=GRCDHKPNQAYMYZZC&cmpid=content_graphics-card_8965229628_gmc_dyn&tgi=sem,1,G,9226359,d,,content,19238968460,none,,,c,,,www.game-debate.com,boomuserlist%3A%3A2582420,,,&gclid=CNrlgJianboCFeYA4godRSMAUg
Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 04:08:38 AM
That's compatible, assuming you have a decent power supply.  It's not a particularly powerful card for gaming though if that's your aim.
Also, don't buy the 4GB version, it's more expensive than the 1GB or 2GB variants and it's no faster.  There are several different variants of the GT 640, the one with GDDR5 memory is faster than the models using GDDR3.  There's also a GT 640 v2 card which should be faster than the original variant due to higher clock speeds and a new core.

Edit: looking through what's available on your link, the GTX 650 and 7770 are available for a similar price and perform better, or there are standard GT 640s available a fair bit cheaper than the 4GB GT 640.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 04:22:19 AM
Tell me any one of similar price and ram but of better performance?
Title: Re: Which graphics Card to select?
Post by: camerongray on October 17, 2013, 04:38:09 AM
These ones would be much better (Better GPUs, Faster memory and cost less) - http://www.flipkart.com/zotac-nvidia-geforce-gtx650-1gb-1-gb-gddr5-graphics-card/p/itmddmmkaqx7gjhh?pid=GRCDDMMGUVQFVWMZ&ref=2158a5b3-5402-4ac0-aff5-af04ac98c253 (http://www.flipkart.com/zotac-nvidia-geforce-gtx650-1gb-1-gb-gddr5-graphics-card/p/itmddmmkaqx7gjhh?pid=GRCDDMMGUVQFVWMZ&ref=2158a5b3-5402-4ac0-aff5-af04ac98c253) and http://www.flipkart.com/gainward-nvidia-geforce-gtx-650-1-gb-gddr5-graphics-card/p/itmdgszzzq3c5gyg?pid=GRCDGSZADXKZ59WT&ref=e7f0cfc8-d438-483d-b1d9-5e84b9e74cd5 (http://www.flipkart.com/gainward-nvidia-geforce-gtx-650-1-gb-gddr5-graphics-card/p/itmdgszzzq3c5gyg?pid=GRCDGSZADXKZ59WT&ref=e7f0cfc8-d438-483d-b1d9-5e84b9e74cd5)

It has 1gb memory, however as Calum said, 4gb of video RAM gives no performance increase in almost all cases.  The only reason you get mid-range cards with 4gb memory is because it makes the card look a lot better than it is so it can be sold for more where the actual cost to the manufacturer of adding the extra RAM is very low.
Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 04:42:33 AM
The Zotac card is the one I had in mind, thanks for the link Cameron.
Bear in mind the GTX 650 does need a 6 pin PCI-E connector though, hence why I asked about your PSU in the first post.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 04:45:59 AM
How to know the powersupply, I have checked the PSU no sticker found.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 07:17:26 AM
While i was searching my computer papers, i got this (see attachment), if this is PSU then, can 200 watts work??

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Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 07:18:46 AM
That's not going to work well with any additional graphics card, and almost certainly won't have the right connector for a midrange card like the GTX650, unfortunately.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 07:46:45 AM
Then what about changing the PSU???
Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 08:35:11 AM
That would be advisable if you want to upgrade the graphics card, yes.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 09:13:26 AM
I have a question if i replace that 200 watt PSU with a 400 watt PSU with no graphics card installed, just only replacing the PSU. Does that effect my computer?

secondly, what type of PSU should i take for that graphics card?
Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 09:15:44 AM
It won't affect your PC, no.  A higher wattage power supply doesn't draw that wattage all the time - just the wattage your PC needs.  So, if your PC currently draws, say, 150W, and you replaced your 200W PSU with a 1200W PSU, it would still only draw 150W (possibly slightly higher depending on efficiency).
I would get at least a quality 450W PSU.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 09:23:02 AM
That helped me a lot to understand my electrical engineering.

So, I need 450W PSU + ZOTAC NVIDIA GeForce GTX650 1GB 1 GB GDDR5 Graphics Card .


1 more question, You can see my computer details from the text attachment, in that, you can see that i have a internal graphic memory of 1310MB. So, my question is after adding this graphics card how this card help me or improve my performance.

Ok that graphic memory is not there in the text, but i have a graphic memory of 1310MB.
Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 09:29:06 AM
Graphics card memory (VRAM) doesn't have as much impact on performance as their marketing teams would like you to think.
The only time more VRAM will help is if you're running out of frame buffer, typically by running at high resolutions, high res textures, or lots of AA.
The GTX 650 is much, much better than your current onboard graphics, the Intel X4500, so will perform much, much better in games.
Remember, each specification on a graphics card - core count, core clock, amount of VRAM, memory bus width, etc - is only part of the bigger picture, so it's impossible to judge performance based on one specification alone.  Judging a card based on its memory is what the marketing teams usually want, because it's an easy point of comparison and it's cheap for them to increase the VRAM from, say, 1GB to 4GB and charge extra, increasing their profit, when in reality the card is often too weak to take advantage of the extra 3GB of VRAM, and sometimes the card is even crippled in other ways so it's actually slower.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 09:49:23 AM
I understood a little bit, that we should not go only with RAM but also go with whole specifications. From this I understand that the inbuilt graphic integrated circuit cannot perform well as compare to this graphics card.



[Additionally, i am not able to understand this computer language well as i am in the field of Electricals]

Thanks for everything!
Good Bye.
Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 09:50:40 AM
That's correct, basically there's a lot more to performance than just the memory size, and the dedicated card will be far superior to the built in Intel graphics.
You're welcome :)
Title: Re: Which graphics Card to select?
Post by: Computer_Commando on October 17, 2013, 10:55:06 AM
uATX  psu probably indicates SFF case.  A standard size psu will not fit.  Not sure if it even has a PCI-e slot, but probably would need a low profile card.
Title: Re: Which graphics Card to select?
Post by: Calum on October 17, 2013, 02:14:18 PM
Where does it say it's a uATX PSU?  The system does have a PCI-E slot judging from the system specifications attached in the OP - the board is an ECS G41T-R3.  It may well need a low profile card if it is indeed a low profile/slim system, I was assuming it wasn't mainly because it still uses a 3.5" HDD and full size ODD but it's certainly a possibility.
Title: Re: Which graphics Card to select?
Post by: Computer_Commando on October 17, 2013, 05:53:32 PM
Where does it say it's a uATX PSU?...
Picture in Reply #8, says mATX
Title: Re: Which graphics Card to select?
Post by: IPDO on October 17, 2013, 10:41:03 PM
Are you people trying to say that that graphics card will not support my computer. Please Explain in Detail that how i can upgrade my Computer Graphics so that I can Play games like Call of Duty Black Ops 2 etc.
Title: Re: Which graphics Card to select?
Post by: Calum on October 18, 2013, 11:41:38 AM
Picture in Reply #8, says mATX

It says mATX/ATX, so it could be either...at least that's the way I'm reading it, I would think if it was a PSU that is smaller than the ATX standard it would just say uATX, mATX, or SFF, to be clearer.  Normally when I've seen a PSU marked "mATX/ATX" it has been ATX, as some people don't realise that an ATX PSU (in other words, standard size) will also power an mATX system, in the same way sometimes people think an mATX board requires an mATX case.

IPDO, could you by any chance take a photo of the system, preferably with the side panel removed, so we can see what we're dealing with to ensure the card will physically fit?
Title: Re: Which graphics Card to select?
Post by: IPDO on October 19, 2013, 05:47:02 AM
Need more!!!

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Title: Re: Which graphics Card to select?
Post by: Calum on October 19, 2013, 06:32:22 AM
Your case is a micro ATX case, but your power supply is standard, so you don't need a special size of PSU - just a normal ATX one.  A normal graphics card will also be fine, no need for a slimline or low profile card.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 19, 2013, 06:53:53 AM
I think i got my PSU
from this link http://www.zauba.com/import-power+supply+smps+200w-hs-code.html I got the type i.e,     HK300-13GP
And from this link http://www.huntkey.com/en/products/d512/index.html I think this is my PSU.

From this Data tell me which PSU are supported and Graphic Cards too.
Title: Re: Which graphics Card to select?
Post by: Computer_Commando on October 19, 2013, 02:04:47 PM
How to know the powersupply, I have checked the PSU no sticker found.
I see 2 stickers.
http://www.huntkey.com/en/products/d512/index.html
12V@14A is not enough for a separate graphics card.

Summary
      Operating System
         Windows 7 Ultimate 64-bit
      CPU
         Intel Pentium E5800 @ 3.20GHz   40 °C
         Wolfdale 45nm Technology
      RAM
         3.00GB Dual-Channel DDR3 @ 399MHz (6-6-6-15)
      Motherboard
         ECS G41T-R3 (CPU 1)   30 °C
      Graphics
         HCMELWBN11 (1366x768@60Hz)
         Intel G41 Express Chipset (Elitegroup)
      Hard Drives
         466GB Seagate ST3500413AS ATA Device (SATA)   41 °C
      Optical Drives
         TSSTcorp CDDVDW SH-S223C ATA Device
      Audio
         IDT High Definition Audio CODEC


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Title: Re: Which graphics Card to select?
Post by: IPDO on October 19, 2013, 08:59:26 PM
Thats not stickers that are straight line holes.
Title: Re: Which graphics Card to select?
Post by: Insanemuch on October 20, 2013, 02:02:50 AM
If I were you, I would get a higher PSU than 400, like a 600-700, so if in future you want to get an extremely high spec graphics card, or processor, you may need to upgrade everything else but not the power supply. Just make sure if you do that your case has enough ventilation.
Title: Re: Which graphics Card to select?
Post by: Calum on October 21, 2013, 09:48:14 AM
Any standard PSU will be fine.  You just need a decent quality 450W or higher.  Getting a higher rated PSU, as said, will give you headroom for further upgrades if you like.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 21, 2013, 09:51:14 AM
I need to know about current,
Increase in power will lead to increase in current and hence high current will pass through the computer components which may damage the computer.
Whats your opinion!!!
Title: Re: Which graphics Card to select?
Post by: Calum on October 21, 2013, 09:52:35 AM
A higher wattage power supply doesn't draw that wattage all the time - just the wattage your PC needs.  So, if your PC currently draws, say, 150W, and you replaced your 200W PSU with a 1200W PSU, it would still only draw 150W (possibly slightly higher depending on efficiency).
I would get at least a quality 450W PSU.

As I already said, computer power supplies don't work like that.  Components only draw the power they need.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 21, 2013, 10:06:44 AM
thats the power, explain in terms of current?
Title: Re: Which graphics Card to select?
Post by: Calum on October 21, 2013, 10:11:56 AM
Replace power with current if you like.  All components draw specified voltages from specific individual wires on the connectors - they draw 3.3V, 5V or 12V as needed.  If they need more power, they draw more amps (current).  Current is drawn rather than "pushed", so it doesn't matter how many amps the power supply can supply, the components will only draw what they require.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 21, 2013, 10:15:41 AM
If that is the case then why do we say that "The transistor or the Diode is damaged due to high current/voltage".
Title: Re: Which graphics Card to select?
Post by: Calum on October 21, 2013, 10:19:07 AM
That would be due to something failing rather than the PSU being able to supply more current than the device can handle.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 21, 2013, 10:30:39 AM
Brother, Increase in current will led to shifting of Operating position of a device, say Transistor for CE configuration if Ic and Ib increases then Q point shifts and crosses the breakdown boundary and then the transistor will get damaged.
Title: Re: Which graphics Card to select?
Post by: Calum on October 21, 2013, 10:39:01 AM
I understand.  But believe me, you can use a power supply rated as high as you want without any fear of damage.  If your PC draws 150W, you can use anything above that rating.  Otherwise, you'd have to buy an exact sized PSU for each individual system - if your system drew 153W under load, anything above that would damage it, surely...and when it was idle, drawing 50W, that exact same 153W PSU would damage it.
Title: Re: Which graphics Card to select?
Post by: IPDO on October 21, 2013, 10:45:50 AM
How is that possible. Then, PSU has some features that is doing all these. Please explain the PSU features.

I want to know how PSU works?

Sorry for taking you to Electrical's but you need to prove it that you are correct!!!!!
Title: Re: Which graphics Card to select?
Post by: Calum on October 21, 2013, 10:58:30 AM
Think about it.  Do you expect that your computer, as it stands, just draws 200W (the power supply's rating), whether it's sitting there doing nothing or under full load doing intensive computing?  It doesn't.  The power supply regulates its output, and supplies only what is needed.  This is pretty much a basic function of most power supplies, not just computer power supplies.
I'm not an electrical engineer myself so I can't fully explain how this is done, I couldn't tell you which components in a PC power supply do this or how they do it without literally just Google searching it.
Title: Re: Which graphics Card to select?
Post by: Computer_Commando on October 21, 2013, 11:08:48 AM
Brother, Increase in current will led to shifting of Operating position of a device, say Transistor for CE configuration if Ic and Ib increases then Q point shifts and crosses the breakdown boundary and then the transistor will get damaged.
This is beginning to sound like homework, which we don't help with.

How is that possible. Then, PSU has some features that is doing all these. Please explain the PSU features.

I want to know how PSU works?

Sorry for taking you to Electrical's but you need to prove it that you are correct!!!!!
Sounds like more homework.  Proof?  How about 2 degrees in Electrical Engineering & too many years of experience, which I don't intend to detail here?
Title: Re: Which graphics Card to select?
Post by: IPDO on October 21, 2013, 11:22:35 AM
hmmm. It seems Commando can tell something about PSU.

Anyhow, I think i need to agree with Calum for the logic he stated.
Need to Discuss with my Teachers.
I will come back and let you know.
Title: Re: Which graphics Card to select?
Post by: Computer_Commando on October 21, 2013, 12:01:07 PM
hmmm. It seems Commando can tell something about PSU.

Anyhow, I think i need to agree with Calum for the logic he stated.
Need to Discuss with my Teachers.
I will come back and let you know.
Use Google...teach yourself...impress your  teachers.
CC
Title: Re: Which graphics Card to select?
Post by: patio on October 21, 2013, 04:24:04 PM
I predict a 5 page thread...
Title: Re: Which graphics Card to select?
Post by: IPDO on October 24, 2013, 07:25:12 AM
I cleared my Doubt and Calum was right.
I am correcting myself:
Brother, Increase in current will led to shifting of Operating position of a device, say Transistor for CE configuration if Ic and Ib increases then Q point shifts and crosses the breakdown boundary and then the transistor will get damaged.

Ic is dependent on Ib and Ib is dependent on [Vcc,Vbe,Rb,Hfe]; Here Vcc and Vbe are constant; Hfe depends on manufacturer and hence it is also a constant and let Rb is a fixed resistance. From all of this, all are constants and Hence no Change in Ic even increase in current.

If that is the case then why do we say that "The transistor or the Diode is damaged due to high current/voltage".

The Transistor or Diode is Said to be Damaged when Short Circuited and that WE DON'T DO THAT.

How is that possible. Then, PSU has some features that is doing all these. Please explain the PSU features.

I want to know how PSU works?

Sorry for taking you to Electrical's but you need to prove it that you are correct!!!!!

Its not any special component doing this, it is the basic Electrical's  See attachment.

And that helped us all and Sorry for any inconvenience caused.
Thanks.

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