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2GB gddr5 or 4GB ddr3?

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November 7, 2012 12:19:19 PM

hey guys,

i found a HD7750 today with 4gb's of ddr3 at a relative speed of 1600.
it was around $120 austrailan.
i was wondering, would (for mostly gaming) this card perform better than 2gb's of gddr5 at 4500 effective on the nvidia GTX 650 card.
the GTX is $160

note: the card will be powering one 1920 x 1080 and one 1600 x 900 monitor.

thanks, Lord Tumnas

More about : 2gb gddr5 4gb ddr3

a b U Graphics card
November 7, 2012 12:23:41 PM

The amount of memory does not effect performance (benchmarks, FPS) unless you're running multiple monitors, 3+. The memory speed and bandwidth is more important.

The Radeon 7750 is a GDDR5 video card. All of the 7xxx series are GDDR5. I've also never seen a 7750 with more than 1gb. Are you sure about that model?
a b U Graphics card
November 7, 2012 12:27:13 PM

7k series dont use ddr3
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a b U Graphics card
November 7, 2012 12:34:14 PM

Yep, that's PowerColor doing there own thing. That card was never released by AMD. It's a PowerColor special. Uhm, I wouldn't use it.

The 650 is a stronger video card than the 7750 for gaming. That much VRAM on a low budget, low end video card is iffy.

Edit: A better bet would be a Radeon 7770. Don't know what the pricing point for you would be. In the US the 7770 can be found for under $100 USD.
November 7, 2012 12:39:45 PM

the 7770 over the 650??
the 2GB 650 costs 160 in aus, with the 7770 at about 120, and im willing to pay fpr the 650
a b U Graphics card
November 7, 2012 12:46:39 PM

Lord Tumnas said:
the 7770 over the 650??
the 2GB 650 costs 160 in aus, with the 7770 at about 120, and im willing to pay fpr the 650


Yes. The HD 7770 is faster than the GTX 650 but not as fast as the GTX 650 Ti.

I'm looking at PC Case Gear and any of the 7770 will work fine. The Gigabyte for $119 is a good deal. Overclock it yourself, you might be able to squeeze another 150-200mhz out of the core / mem.
November 7, 2012 12:57:35 PM

thankyou!
i probably should have checked some benchmarks...
would the 7770 perform faster than the 650 on games that used the full 2GB memory?
November 7, 2012 1:22:19 PM

Quote:
thankyou!
i probably should have checked some benchmarks...
would the 7770 perform faster than the 650 on games that used the full 2GB memory?



When you say "games that would use the full 2GB Memory" It depends on what resolution you are playing the game at and what setup of monitors you are using that determine if it will use it or not.

Let's say you are using 3 monitor setup with a resolution higher then 1920x1080p. Here then Yes the 7770 would perform faster than the 650. But if you are talking about a 1 monitor with 1920x1080p or lower then :non: .

The only thing Video Cards with over 1GB benefit is in buffering more content to multiple monitors at a faster rate.
a b U Graphics card
November 7, 2012 1:46:37 PM

Usually 2 GB on a video card will be more than enough to handle most games unless you play on 3 monitors or have 1 monitor with a 2560 x 1600 resolution and everything at max settings.

So I'd rather have 2 GB of faster memory (DDR5) vs. 4 GB of slower memory (DDR3). In this case speed beats quantity.

For instance, I have a GTX-460 with "only" 1 GB of memory and so far I'm able to play all my games at max settings with a resolution of 1920 x 1200. When I shop for a video card, I look more at the GPU performance and memory bandwidth rather than the total quantity of memory.
a b U Graphics card
November 7, 2012 1:58:18 PM

Like MC_K7 & Mastervi10 already said, at your resolution and single monitor 1gb is plenty unless you're playing Skyrim with the texture packs installed. As games continue to evolve the standard 1gb will become 2gb (Medal of Honor).
a b U Graphics card
January 3, 2013 4:08:33 AM

MC_K7 said:
Usually 2 GB on a video card will be more than enough to handle most games unless you play on 3 monitors or have 1 monitor with a 2560 x 1600 resolution and everything at max settings.

So I'd rather have 2 GB of faster memory (DDR5) vs. 4 GB of slower memory (DDR3). In this case speed beats quantity.

For instance, I have a GTX-460 with "only" 1 GB of memory and so far I'm able to play all my games at max settings with a resolution of 1920 x 1200. When I shop for a video card, I look more at the GPU performance and memory bandwidth rather than the total quantity of memory.



which gtx 460 u have?
January 3, 2013 5:51:46 AM

I believe most games use about 4GBs.
!