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ATI Mobility Radeon HD 550v VS ATI Mobility Radeon HD 5470

Last response: in Graphics & Displays
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September 13, 2010 10:20:04 AM

Hey
I want to know how ATI Mobility Radeon HD 550v 1GB GPU compares with my 5470 1GB.
I heard the 550v release only in May 2010? I am unable to find any info and benchmark for the same...

Also the product data sheet says 550v supports only Directx 10.1 and Shader Mod 4.1
But 5470 supports directx 11.0 and Shader Mod 5.0
Does this mean 5470 is better? Please help me understand this...

But in other aspects such as the number of transistors, stream processing units etc the 550v has greater numbers.
Kindly help me understand what the differences are and which is the better GPU?

Thanks in advance

Referances:
http://www.amd.com/us/products/notebook/graphics/ati-mo...
http://www.amd.com/us/products/notebook/graphics/ati-mo...
a c 169 U Graphics card
September 13, 2010 10:55:35 AM

Hello and welcome to the forums
Check this link
http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-550...
"The AMD ATI Mobility Radeon HD 550v is based on the same chip as the old Mobility Radeon HD 4650 but features slightly slower clock rates."
So its faster than 5470M.
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September 13, 2010 11:43:19 AM

Maziar said:
Hello and welcome to the forums
Check this link
http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-550...
"The AMD ATI Mobility Radeon HD 550v is based on the same chip as the old Mobility Radeon HD 4650 but features slightly slower clock rates."
So its faster than 5470M.


But isnt a higher clock speed and higher shader and mem speed indicative of better performance? Also why does 550v only support Directx 10.1 and Sharder mode 4
But yeah I saw that the 4650 has better performance that 5470 in the link you provided...


Check this...
http://products.amd.com/en-us/MobilityGPUSideBySide.asp...

http://www.notebookcheck.net/AMD-ATI-Mobility-Radeon-HD...
http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-550...
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a c 169 U Graphics card
September 13, 2010 2:46:15 PM

No,there are many other important factors than clock speed, for example 550v has 320 unified pipelines compared to 80 on 5470M,therefore its much faster.
And the reason that it supports DX 10.1 and SM4 is because its based on HD 4xxx architectures(which support DX 10.1 and SM4)
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September 13, 2010 2:57:15 PM

5470 is better...is uses dx11 which means it will last longer than 550v....number of transistors and stream processing units depends upon the technology which company has used. eg: geforce technology uses less stream processors but is somewhat higher in clocks....similarly radeon technology uses some more stream processing units but compromises in some other clocks........although performance remains equal.
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a c 169 U Graphics card
September 13, 2010 9:55:47 PM

No
5470 has DX11 and more new features but it doesn't come close to 550v's performance,because like i mentioned,550v has much more stream processors therefore it performs better in games.
Check some benchmarks from notebookcheck.net and you'll see how large the performance gap is between them.
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a b U Graphics card
September 13, 2010 10:02:20 PM

Performance wise the 550v is obviously better, but the 5470 will best the 550v in terms of power draw for being lower-performance and newer.

The reason the 550v only supports DX10 is because it is a older chip based of the HD4000 with a new name while the 5470 is a "real" 40nm HD5000 part. But for chips this level, DX11 shouldn't matter at all, after all even a 5870M struggles with DX11 effects.
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September 21, 2010 4:22:00 PM

Best answer selected by rtindru.
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