Friday, March 12th 2021

TechPowerUp GPU-Z v2.38.0 Released

TechPowerUp today released the latest version of TechPowerUp GPU-Z, the popular graphics subsystem information and monitoring utility. With the latest version 2.38.0, we are introducing the ability to detect Resizable BAR support. GPU-Z can now tell whether Resizable BAR is supported, and if so, whether it is enabled. AMD refers to Resizable BAR as AMD Smart Access Memory, but it is a feature developed by the PCI-SIG, which lets your CPU see the entire video memory of your discrete graphics card as a single addressable block, rather than through 256 MB apertures. This feature has been found to improve performance in games that can take advantage of it. Resizable BAR status can now be viewed from the main tab, right next to the multi-GPU status.

The latest TechPowerUp GPU-Z also adds support for new and upcoming GPUs, including AMD Radeon RX 6700 XT, RX 6700, RX 6600 XT, RX 6600, and Ryzen "Lucienne" mobile processor iGPUs. Support is also added for NVIDIA GeForce RTX 3070 Mobile. Other new features include the ability to monitor negative temperatures on NVIDIA GPUs. We fixed video BIOS extraction on AMD RDNA2 GPUs (Radeon RX 6000 series). Grab GPU-Z from the link below.

DOWNLOAD: TechPowerUp GPU-Z 2.38.0
The change-log follows.

  • Fixed BIOS saving on AMD RDNA2 cards. BIOSes saved with old GPU-Z versions are only 512 KB and will brick your card when flashed
  • PCI-Express Resizable BAR status is now displayed in the main window
  • Added support for negative temperature monitoring on NVIDIA
  • Added support for AMD Radeon RX 6700 XT, RX 6700, RX 6600 XT, RX 6600, Lucienne APU integrated graphics
  • Added support for NVIDIA GeForce RTX 3070 Mobile
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52 Comments on TechPowerUp GPU-Z v2.38.0 Released

#1
Solaris17
Dainty Moderator
btarunrPCI-Express Resizable BAR status is now displayed in the main window
Given that some cards need a BIOS upgrade to support this, is there a way in the VGA BIOS DB to flag if a BIOS supports BAR?
Posted on Reply
#2
Legacy-ZA
No stock edition. I would have made another dummy release to display readouts of "Out of Stock" empty technology boxes (not ticked) and memory & GPU clocks above $3000 ;)
Posted on Reply
#3
W1zzard
Solaris17Given that some cards need a BIOS upgrade to support this, is there a way in the VGA BIOS DB to flag if a BIOS supports BAR?
Maybe, we'll know more once these BIOSes are out
Posted on Reply
#4
puma99dk|
Nice adding with the Resizable BAR feature should com in handle when I can enable it on with my AMD Ryzen 9 3900X and AMD Radeon RX 6800 XT :D
Posted on Reply
#5
cellar door
Hello @W1zzard

Is there a reason why GPUZ reads VDDCI (mV) - the I/O bus voltage, instead of mvdd of the actual gddr6 on navi1?

For ex. the micron gddr6 on nav1 runs at 1.35V (mvdd) - this is actual gddr6 chip voltage.

GPUZ instead shows VDDCI (mV) - the I/O bus voltage - which runs at 850mv as "Memory Voltage"
Posted on Reply
#6
W1zzard
cellar doorIs there a reason why GPUZ reads VDDCI (mV) - the I/O bus voltage, instead of mvdd of the actual gddr6 on navi1?
Which card is that?
Posted on Reply
#7
lynx29
"
  • PCI-Express Resizable BAR status is now displayed in the main window
"


@W1zzard you spoil us. :rockout:


W1zzy boyo does what AMD can't :love:


edit: just confirmed, it is showing enabled on mine. nice. it always baffled me why AMD didn't have an indicator in their driver software. lulz. and w1zz just does it so easily.
Posted on Reply
#8
W1zzard
lynx29and w1zz just does it so easily.
It really is trivial to read out
Posted on Reply
#9
cellar door
W1zzardWhich card is that?
RX 5700XT - the original navi1.

The memory voltage readout - actual gddr6 runs at 1.35v(mvdd). GPUZ readout shows 0.85v, which is the VDDCI (mV) - the I/O bus voltage. Just wondering if this is by design.
Posted on Reply
#10
turbogear
Thanks a lot W1zzard for the new version of GPU-Z.:lovetpu:

Glad to see that the problem with AMD RDNA2 cards wrong size bios saving is fixed.

It will save a few folks from bricking their cards by downloading the wrong size bios from TPU.
I will try it right away and submit then the correct bios to TPU for my card. :)
Posted on Reply
#11
Athlonite
Solaris17Given that some cards need a BIOS upgrade to support this, is there a way in the VGA BIOS DB to flag if a BIOS supports BAR?
both nvidia RTX30xx series and AMD RX6000 series already support Resizable BAR it's the mobo bios's that need to be updated
Posted on Reply
#12
W1zzard
cellar doorThe memory voltage readout - actual gddr6 runs at 1.35v(mvdd). GPUZ readout shows 0.85v, which is the VDDCI (mV) - the I/O bus voltage. Just wondering if this is by design.
Ah now I get it, I was looking for the reverse in my code :) "Why is VDDCI displayed and it really is MVDDC". AMD's driver provides the data for this sensor, they call it "MEM_VOLTAGE" .. so I don't have much choice, because they might arbitrarily change it for other cards to really be MVDDC
Posted on Reply
#13
puma99dk|
Thanks @W1zzard for the Resizable BAR support it works fine on my setup detected :D

Posted on Reply
#15
qubit
Overclocked quantum bit
btarunrwhich lets your CPU see the entire video memory of your discrete graphics card as a single addressable block, rather than through 256 MB apertures.
This reminds me of the x86 address segmentation they got rid of 36 years ago with the 386 because it was holding back performance. I don't understand why they ever introduced the same concept for graphics cards and I didn't even know it was like this until this Resizable BAR came along.
Posted on Reply
#16
Trickster_1990

First off, thanks for this awesome inclusion. Now, I Have a 3800X and my MB is running on latest BIOS with R-BAR enabled in the BIOS but my graphics card is an RX Vega 64. You mentioned in the article that GPU-Z detects if R-BAR is SUPPORTED. I wanted to ask if this option shows if it is supported by the MB & CPU or if it is supported by the GPU, because AFAIK Vega arch doesn't support R-BAR!
Posted on Reply
#17
cellar door
W1zzardAh now I get it, I was looking for the reverse in my code :) "Why is VDDCI displayed and it really is MVDDC". AMD's driver provides the data for this sensor, they call it "MEM_VOLTAGE" .. so I don't have much choice, because they might arbitrarily change it for other cards to really be MVDDC
I'm guessing there is no way to add a IF statement ... "ex. IF navi1 - THEN read VDDCI"

It's like this for all navi1 cards. There is a utility called AMD.Memory.Tweak.XL - which reads it correctly and is able to modify the powertables to even increase/decrease it.

Many people have been able to increase the GDDR6 voltage and achieve higher memory speeds - that is why it would be nice to get a proper reading in GPUZ, since we all use it.

Anyways, thanks for looking into it.
Posted on Reply
#18
u2konline

Lol still wondering why my specs are not shown correctly. Its with this with the other app too, that gpuviewer app.
Posted on Reply
#20
W1zzard
Trickster_1990I wanted to ask if this option shows if it is supported by the MB & CPU or if it is supported by the GPU, because AFAIK Vega arch doesn't support R-BAR!
It shows "Enabled" when the option is active, that is the BAR has been resized from small to big. However it is possible that AMD's driver activate optimizations only for newer GPU archs
u2konline
Lol still wondering why my specs are not shown correctly. Its with this with the other app too, that gpuviewer app.
Didn't I ask for TeamViewer access to run a few debug builds?
Posted on Reply
#21
u2konline
W1zzardIt shows "Enabled" when the option is active, that is the BAR has been resized from small to big. However it is possible that AMD's driver activate optimizations only for newer GPU archs


Didn't I ask for TeamViewer access to run a few debug builds?
Yea, while back. I think i sent a message. I will be free next Tuesday all day, or sometime next week, just let me know.
Posted on Reply
#22
Athlonite
Trickster_1990
First off, thanks for this awesome inclusion. Now, I Have a 3800X and my MB is running on latest BIOS with R-BAR enabled in the BIOS but my graphics card is an RX Vega 64. You mentioned in the article that GPU-Z detects if R-BAR is SUPPORTED. I wanted to ask if this option shows if it is supported by the MB & CPU or if it is supported by the GPU, because AFAIK Vega arch doesn't support R-BAR!
Your GPU does not support RBar (yet) but if a GPU and mobo does and it is enabled in the mobo BIOS then GPUz will show it as enabled otherwise it'll just remain an unticked box
Posted on Reply
#23
R00kie
P4-630

:clap: :pimp:
weird, mine says its not supported, even though its turned on in the bios

Posted on Reply
#24
Athlonite
gdallskweird, mine says its not supported, even though its turned on in the bios

that's because it's a 2070 not a 3070
Posted on Reply
#25
R00kie
Athlonitethat's because it's a 2070 not a 3070
Look at his screenshot again mate, its a 2070 super, there are no 3070 supers
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