# PVRTune problem
**URL:** https://forums.imgtec.com/t/pvrtune-problem/2688
**Category:** PowerVR Insider
**Tags:** pvrtune
**Created:** [May 30, 2018, 2:40pm UTC](https://forums.imgtec.com/t/pvrtune-problem/2688 "2018-05-30T14:40:43Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Sunflower](https://forums.imgtec.com/u/Sunflower)
#### Post date: [May 30, 2018, 2:40pm UTC](https://forums.imgtec.com/t/pvrtune-problem/2688/1 "2018-05-30T14:40:44Z")
Dear Imagination.
I’d like to use PVRTune for PowerVR GPU performance analysis in some system.
Though I use PVRPerfServer on my System & PVRTune on Windows PC,
PVRTune can’t get information from my system.
Could you give me some advice ?
I found that version mismatch between those tools( PVRTune showed the message).
If this is the reason, How do I resolve this issue?
My PVRPerfServer is v14.142, but the latest PVRTune is v14.144
Best Regards.
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### Author:  [@MartonTamas](https://forums.imgtec.com/u/MartonTamas)
#### Post date: [May 30, 2018, 3:06pm UTC](https://forums.imgtec.com/t/pvrtune-problem/2688/2 "2018-05-30T15:06:28Z")
Hi,
you need to use a matching PVRTune and PVRPerfserver for best results. Please use both from our latest release from here: [https://community.imgtec.com/developers/powervr/graphics-sdk/](https://community.imgtec.com/developers/powervr/graphics-sdk/)
bests,
Marton
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### Author:  [@Sunflower](https://forums.imgtec.com/u/Sunflower)
#### Post date: [May 30, 2018, 11:52pm UTC](https://forums.imgtec.com/t/pvrtune-problem/2688/3 "2018-05-30T23:52:02Z")
Dear Marton.
Thank you for your quick reply.
I also think that your answer is the best results.
But it may be difficult to use the latest PVRTune because my system uses dedicated OS and may not update PVRPerfserver.
I saw the URL you suggested.
I will look into my system again and, if needed, request legacy SDK.
Best Regards.
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### Author:  [@Sunflower](https://forums.imgtec.com/u/Sunflower)
#### Post date: [June 11, 2018, 6:14am UTC](https://forums.imgtec.com/t/pvrtune-problem/2688/4 "2018-06-11T06:14:02Z")
Dear Marton.
I can use PVRTune by matching versions between PC & Platform. Thank you very much.
I have a question about PVRTune. What does “Words/sec” mean in GPU memory read/write ?
1Word means 32bit access ? or depend on platform ?
Best Regards.
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### Author:  [@MartonTamas](https://forums.imgtec.com/u/MartonTamas)
#### Post date: [June 11, 2018, 7:26am UTC](https://forums.imgtec.com/t/pvrtune-problem/2688/5 "2018-06-11T07:26:59Z")
Hi,
“words” is the width of the memory bus, 16 or 32 bytes depending on the exact GPU. You should be able to read about it in the counter’s description.
bests,
Marton
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### Author:  [@MartonTamas](https://forums.imgtec.com/u/MartonTamas)
#### Post date: [June 11, 2018, 7:29am UTC](https://forums.imgtec.com/t/pvrtune-problem/2688/6 "2018-06-11T07:29:14Z")
PVRTune documentation:
[http://cdn.imgtec.com/sdk-documentation/PVRTune.User+Manual.Developer.pdf](http://cdn.imgtec.com/sdk-documentation/PVRTune.User+Manual.Developer.pdf)