Why do some modern mobile GPUs have such a small Memory bandwidth compared to older ones?

Toggle sidebar Toggle sidebar
C

CameronB92

Honorable
Jan 15, 2013
35
0
10,540
I just recently purchased a new laptop that I believe is quite good for the price I paid(300$): 6 gigs of DDR3 RAM, 750 gig HDD, 2nd gen i5 2410 CPU, and a dedicated GT520m

I know for playing games, laptops aren't the ideal choice, and I know that the 520m is rather weak, weaker than the integrated HD4000 even.

Though, only because the memory bus of the HD4000 is double that of the GT 520m. The 520m beats it in every other department by a wide margin.

But because of that Memory bandwidth, it's like 30% faster than the GT 520m and I have to ask, why Why would nvidia put a 64bit interface on a card that debuted in 2011?

There are cards with 256bit buses from 2006! Example: a Nvidia Geforce Go 7800 has a bandwith of 35.2 gigabytes per second while the gt520 has a meager 12.8 and this 7800 is from 2006!

And it's not even like the GT 520m is using GDDR5 memory. It's still utilizing DDR3 so why, why would this card be intentionally crippled by nvidia? (and any other cards with such a laughable memory bus w/ddr3 memory)
 
Sort by date Sort by votes
C

CameronB92

Honorable
Jan 15, 2013
35
0
10,540
I know it's an entry level GPU, but in my eyes that doesn't justify Nvidia putting a 64 BIT INTERFACE on it when there's INTEGRATED cards with double the memory performance.

And the laptop in question that has this card MSRP'd for 900 dollars in 2011 and the price is still around 600 bucks in stores and ebay. So, really you're paying, payed more than you should have for what you're getting.


Edit* I just looked at that article and it's saying they come in 64bit and 128bit variations. So how do you know if the card youre getting has the 128bit bus? the stock card is advertised as 64 bit only

And they're saying it can't play BF3 when I've seen many a video on youtube with people playing BF3 with 30 FPS, and even people playing BF4.
 
Upvote 0 Downvote
C

CameronB92

Honorable
Jan 15, 2013
35
0
10,540
I already know what I said, one of my perplexes was that an integrated card has double the memory bandwidth of a dedicated card.

And apparently the GT 520 MX is the card with the 128bit bus. Why make 2 cards? they're both entry level, why manuffacture 2 virtually identical cards but bottleneck one of them and sell the other with a higher bandwidth but keep them in same market. lol Don't understand the logic there
 
Upvote 0 Downvote
D

Derza10

Dignified
Sep 7, 2012
3,585
1
15,460
I'm a bit confused... If it isn't up to spec that you want... why buy it? I really don't see an issue here at all. And i'm sure the 64Bit is cheaper for them to make, if you want something better most of the time you have to pay more, that is how the world works...
 
Upvote 0 Downvote
C

CameronB92

Honorable
Jan 15, 2013
35
0
10,540
If I had 900 dollars in my pocket and this was 2011, I would do just that. But then again I would never spend that much on a laptop when I could get a desktop with 3times the power for the same money. At any rate, for 300 dollars, I couldn't find a better laptop. For 900, different story.

It just irks me that they would sell TWO cards when they could just have one with the 128 bit bus.


To the above poster: I do not understand why a mid range card from 2006 has 4x the memory bus(7800 GO) compared to a card from 2011, that's one class lower(GT520M). AND said card has two variations of the SAME CARD with one using a 128 bit and the other the lame 64 bit
 
Upvote 0 Downvote
C

CameronB92

Honorable
Jan 15, 2013
35
0
10,540
You are the least helpful person I have ever come across on these boards, you have nothing insightful that pertains to my original question. No it is NOT cheaper for them, if anything it costs them MORE money to make both iterations of this card.

Like I've already said they have TWO of these cards out there under the same name. One with the 64 bit bus and another with the 128 bit bus.
 
Upvote 0 Downvote
rgd1101

rgd1101

Don't
Moderator
Nov 7, 2011
73,289
3,851
176,290


Oh, I sorry, you are right. they are wrong and I'm wrong.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom