4870 crossfire vs 8970m

Onelius

Honorable
Jan 27, 2013
55
0
10,640
Hello everyone, I have several questions and curiosities(maybe contradictions as well?) that I am hoping can be answered and explained, respectively.

First off, I have a gx70 gpu with a 8970m discrete graphics card and 8650g integrated. Catalyst and GPUZ both show the 8970 with a 160GB/s memory bandwidth. However, Catalyst shows the 8650G with a 12.8GB/s bandwidth while GPUZ shows 25.6GB/s. That's exactly double the amount so i'm guessing there's something to that.

Second, I have been given an offer of 2 hd 4870 cards and i'm wondering if that would give me any upgrade to over my laptop's gpu. I have come upon a review of a 4870x2 card (dual gpu card) that's supposed to have 230GB/s of bandwidth, but a GPUZ snapshot of that card on the same review shows only 64GB/s. It's possible that I misunderstood what I saw so I am adding a link to the review: http://www.legitreviews.com/palit-radeon-4870-x2-crossfire-video-card-review_766.

Would appreciate any help or advice given on this matter, thank you.
 

Eximo

Titan
Ambassador
You are comparing a desktop card to laptop cards. You can't install a 4870X2 into a laptop. Also quite an old card (still fairly powerful though)

8970m is the fastest single laptop GPU available from ATI at the moment, so you shouldn't be having any complaints.
 

Onelius

Honorable
Jan 27, 2013
55
0
10,640


I am well aware that I am comparing laptop and desktop components. I am thinking in terms of absolute performance. If I was to build a system around the 2 4870s (probably a fx-8350 cpu), would I expect better or worse framerates relative to what my 8970 offers.