Radeon HD6650m bandwidth

Hello!
I have Notebook with AMD Radeon HD6650m 1GB ddr3.
My problem is GPU-z is showing max. 12.8 GB/s bandwidth and AMD webpage is saying :

How to fix that I already installed newest drivers and not working at all....

 

Are u sure that problem aint in the version of GPU-Z u r using ???

 

I´m using v. 0.54 i m going to try with 0.53

EDIT: Tried.....not working

 

Regardless don't worry because it maybe miss-detecting your GPU because it is relatively new ... because ur GPU is 128 bit bus width & it is DDR3 so the bandwidth should be 25.6-28.8 GB/sec for memory clocks of 800-900 MHz

 

It's because ULPS is enabled. To disable it follow this instruction here:

Crossfire - disabling ULPS - Overclock.net - Overclocking.net

Just be sure to change ONLY the "EnableULPS" fields to 0 and nothing else.

Alternatively you can download Sapphire Trixx and it has an option to disable ULPS, but I've found that is problematic, although works for some.

 

ULPS is for power saving...

try running a 3D application in a window, and see if the memory bandwidth picks up. Either that, or send us a screenshot so we can see what's up.

 

It is, but that's why it's showing what it is. We've been through this in the HP DV6z forum already.

But you can start up GPU-z, if you have switchable graphics set it to "high performance" then start up another GPU-z and it will show the proper clocks. If you don't have switchable graphics, then you will have to start an actual 3d app then start GPU-z.

 

I ran SHIFt 2 and PES11 but same no changes http://forum.notebookreview.com/attachment.php?attachmentid=69726&stc=1&d=1314301019

 

GPU-z is reporting it incorrectly (for the given clocks). 800MHz DDR3 memory on 128bit = 25.6GB/s.

EDIT: assuming that is the base clock.

 

I dont have hardware info tab

EDIT: But why it is only Whistler not Whistler PRO???

 

Did you alt-tab out when the game started then start GPU-Z? Or download MSI AFterburner and then run Kombustor (part of the package) and then start GPU-Z. Anything that is GPU accelerated.

Otherwise try the ULPS method I mentioned above. It's showing that low performance numbers because ULPS (low power) is enabled. If you disable it, then clocks will be shown appropriately.

If you have switchable graphics, see below. All it's doing is the same thing, assigning something high performance just disables ULPS temporarily, so you can read the appropriate speeds. Best to watch it at 1080p full screen so you can at least read what's on there.

<param name="movie" value="http://www.youtube.com/v/ttb5qbT0kYQ?version=3&amp;hl=en_US"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/ttb5qbT0kYQ?version=3&amp;hl=en_US" type="application/x-shockwave-flash" width='560' height="345" allowscriptaccess="always" allowfullscreen="true"></embed>

 

There is a surefire way of knowing....

download GPUbench 1.2.1 test and find the outputbandwidth test in it and run it from the cmd prompt...

It will give you your exact tested memory bandwidth (after overhead and all) in GB/s to one decimal point (should be enough).

For example, my HD6470m gets 12.6GB/s, which is only 200MB/s off it's rated theoretical max of 12.8GB/s.

 

seperate post, because IE9 and NBR forums don't get along.

 

Because it doesn't make the distinction between Whistler XT and Whistler PRO because normal people don't care what GPU-Z reports the codename of their GPU as?

You seem to be getting hung up on things that are quirks instead of meaningful issues.

 

And you guys seem to be ignoring my posts. It's because of ULPS, period. See my above video. Run a 3D app, keep it running, then run GPU-z. Then it will show appropriate. Or just disable ULPS in the registry, reboot, then it will show appropriately.

 

It's fun that way, though... I mean... my way involves running an app from the command line

 

It would also help if the OP told us what laptop they had.

 

Unless the OP is suffering from a severe performance drop while gaming ... I would say its GPU-Z failing to detect him memory type which is written as Unknown and thus miss calculating the bandwidth ... back in the day GPU-Z miss detected the HD5650 GPU ROPs as 16 Vs the actual 8 and that gave double Texture/Pixel fillrates ... so once again if the performance is normal it is GPU-Z bug

No body is ignoring you but the fact that the vids you showed shows that GPU-Z detects the actual clocks as the ULPS clocks which would affect both of his fill rates and bandwidth while the link the OP posted to his GPU-Z SS shows that GPU-Z is detecting his actual clocks normally and that is also pretty obvious in his fillrates so it is not ULPS

EDIT: OP ur driver is super dooper old ... update to the latest driver since GPU-Z doesn't even detect the fact that ur GPU is capable of Direct Compute 5 or OpenCL ... u may not have an OpenCL driver though ... Also failing on detecting the memory type ... it may all be driver problem so updating the driver might help

 

I can guarantee it is ULPS and if OP were to turn it off (after updating drivers of course as you noted, that could be another problem) it will show properly.

 

Finally, I ran Unigine Heaven DX11 benchmark and ran AIDA64 and seen 25,6 GB/sec bandwidth.. :smile: FIXED!!!!!

 

My 6650m detects correctly in GPU-Z. 28.8 GB/s bandwidth. Not sure what's up with yours.

 

I don´t know...

 

The problem with your GPUz is just the memory type.

Since its not determining its DDR3, it calculates directly as if its DDR1 at 800mhz.

Thus it shows (128bits/8bits/byte)x800mhz)=12,800 MB/s

If your performance is on par with other HD6650m then you don't have to worry about it.