it is a fact that some gaming cards have a lot more muscle than some of the Quadro cards. In fact, usually gaming cards come out first because are the ones that makes most of the revenue for Nvidia, so it is very common to see gaming cards with a lot more CUDA cores than the latest Quadro card. In fact, for one of the software that I use for my dayjob, (color correction, compositing, visual effects...) one of the beta testers is always testing just for the pleasure of testing, the latest gaming cards, and ALWAYS, no exception, gets better performance than with the latest Quadro card. If you code the software correctly, you can do amazing stuff with a gaming GPU, and let's face it, it is what probably 95% of the LR users have. So for who should they write the software? for that 5% that have Quadro cards? or for the remainder 95% that have gaming cards? ... View more

well, it looks like my last response to you was censored, It never showed up...  hope is just a glitch on the system and not moderators trying to shut me up....  I said sort of, good it worked for you, but it should not be what we should do, overclock a machine is not for everyone, you can seriously screw a machine by doing it if you do not know what you doing, and, LR should work correctly out of the box without a "technician" tuning your machine. ... View more

mark-FOTO<https://forums.adobe.com/people/mark-FOTO>, Having a Quadro card does makes no difference, in fact, many gaming cards have plenty of muscle, a lot more than some Quadro card where you paying a lot more money for a supposedly better driver, but hardware is pretty much the same. I have 3 different Quadro cards at my office, all of the computers are HP Z820, and Lightroom is incredible slow on all of the Quadro cards, which are professional cards. So that makes absolutely no difference, and not everyone can buy $1K + cards. ... View more

I use a lot of sharpening and contrast and other things to make diamonds pop or metal to look more interesting. That makes the brush behave like a if I was trying to do it on an old XT PC. Sent from the Moon ... View more

When you say that with the new driver works fine, you mean you can use for example the brush tool at the same speed or better than with 5.7.1? I'm using $4000 GPUs and it won't work any faster, in fact, much slower. Sent from the Moon ... View more

Playing games can not be compared to moving UHD uncompressed pixels. Even though I think LR CC is the worst version ever, gotta be fair in comparing apples to apples. Games use very small textures and things usually rendered in GPU, shaders that simulate things that are quickly processed on the GPU to "create" things. All the leverage is done by the GPU. On image editing, nothing is being created or simulated in the GPU, pixels need to be transferred from your HDD, after being decompressed from the RAW to the GPU, and you are constantly moving uncompressed images. Now, LR does this very poorly because I use other software that does color correction over UHD in real time over the same GPU I have for Lightroom, so I can assure you LR CC is not using it correctly, and I'm talking about 30 frames per second uncompressed UHD. But, you could have a much lesser GPU and still have good performance with games, since things are being created by the GPU. It's a totally different game. On this system I use, called Flame, we can load shaders on the GPU and create super crazy 3D things in real time, it's just a totally different process than editing images. Sent from the Moon ... View more

Best thing you can do is go bat to 5 until 6 is tested and ready if you are a heavy user of the adjustment brush, I am, and I could not use LR CC to do my job, it would take me easily 10 times what takes me on LR 5 ... View more

>>>true, so do release that code when it gets better - meanwhile, don't cripple the code with GPU switched off Absolutely…. Most people I know is uninstalling Lightroom CC and going back to 5.7.1 If is not ready, don’t release it. ... View more

I doubt very much GPU is the easy route, it is may be the most complex one, but if done correctly, it can be awesome. I use every day at my work, Autodesk Flame and Autodesk Lustre, a compositing and a Color Correction software based 100% on GPU processing. And the thing is amazingly fast, and no silly things about time to load images into the GPU. They load 30 5k frames per second on the GPU no problem, but, for certain operations they use CPU too, for example to decode RAW material form cameras like RED, they use all the cores on the system to the max. It's just know where you can get the best out of it. Sent from the Moon ... View more

You are absolutely right, but you forget that people that is on the CC model pays monthly to use the software, and is having a software that is mostly unusable, and I'm not getting any discount for not being able to upgrade, and I'm also running, or try to run, the software on machines that are with monitors working at very high resolution with multi $K GPUs and it does not deliver. Sure we should be patience. But this is a story that repeats over and over and over on each new mayor release of Lightroom, and it does not happens with Photoshop or After Effects, seems that probably Ligthroom have the lowest priority. Anyway, not trying to bash anyone, I know how it works, engineers do the best they can with the time and budget they have. And it is usually a department of marketing that make the decisions of when things go out. And that deadline can not be missed. So I'm not blaming the development team. Sent from the Moon ... View more

Wonder what Adobe used to test this? It's amazing the silence from them to this matter. Even though this thread was initiated by an Adobe employee, all the negative feedback should call to some action, but not a word. Sent from my iPad ... View more

if the details panel needs to be turned OFF, then that is a new problem of LR CC, you are right, it affects performance in a big way, but it didn't on 5.7.1 I can have details ON, and still use the brush adjustments at full speed, in LR CC even with that panel off, it is dead dog slow. ... View more

I have tested it with at least 7 different version of the Nvidia drivers… won’t accelerate anything on any version of the drivers…. To the question of the catalog updated, you should still have the old catalog, it does not overwrite it, it saves it as a new one, so you can go back to the 5.7.1 like I did. I just keep it in there installed to see if at any point at least get fixed to work at the same speed it used to work with GPU off… The HDR thing… not really that useful, still created a DNG file that it is probably not a real floating point image. Face Recognition, who asked for it? Does anyone really need that? Panoramas, yeah…. Well… nice, but I rather see old things work faster and better first. Being able to move a brush adjustment to another place, that is great! Too bad I can’t use it because the performance of the paint is a joke even with GPU OFF Look at the disaster that is with GPU ON: https://www.youtube.com/watch?v=m1VisL8dF3Y and how much better is the 5.7.1 https://www.youtube.com/watch?v=7EEFjurtwxE all on the same machine… ... View more

Sure, then do not release it, or be sure that does not affect it for worst…. Right now GPU acceleration is actually GPU “Deacceleration” it just makes it worst… and the even worst part of this is that even when you turn it OFF, the software is still much slower than the previous version. So, I understand Eric, but Adobe released something that is a huge step back, and this seems to be the trend with Lightroom. ... View more

Klsteven that is very weird. I'm using an HP Z820 with a raid of SSDs that gives about 1600MB/s and both, a Quadro 6000 and a Titan Black, and it sucks. Have you tried the brush with the GPU on? Sliders I don't care much if they are real time or not. It's the fact that paint something is close to impossible what makes it unusable for me. I do jewelry photography and the brush is essential for me. Sent from the Moon ... View more

klsteven, you are lucky, I'm working with 50MP+ images from medium format cameras, it's just unusable, GPU ON or OFF much slower. but perfectly fine in 5.7.1. Those machines have NVIDIA chips? Or are any other brand? I should test with smaller images and see if is any better. I do not see real time on anything, in fact, I get all kind of glitches on the GUI after working for a while. Sent from my iPad ... View more

What is the resolution of the images you are editing? If I work a small images is fast too. But as soon as I get something serious is a disaster. I doubt you would be editing 50 MP images on a surface pro right? Sent from the Moon ... View more

Tony, that is the problem, it is slow too on quite expensive machines too. Sent from the Moon ... View more

I'm using it at my office on $20K+ machines, and still sucks. So.... I'm surprised they didn't do any real world beta testing... That is when real problems show up. Sent from the Moon ... View more

Antivirus is not the problem. On the machines at the office there is no antivirus installed, so that can't be the reason. Adobe just should chime in and say, people, we are sorry, we screwed it. Please keep using 5.7.1 until we get Lightroom CC in a usable shape. It feels like if it was not even beta tested. Was it? Sent from the Moon ... View more

The time of transfer from CPU to GPU should be almost unnoticeable if correctly implemented, PCIe busses can move 255 MB/s per like, provided you have a cheap card working on just 4 lanes that is 1000MB/s how many images you move in a second with 1000 MB? Lightroom should completely decompress a RAW file as soon as you touch it, and not wait until you zoom in to do it, also there are plenty of glitches when GPU is enabled and you use multiple brushes, you can get horrendous artifacts, the GUI flickers, etc etc.... The person that decided that this was ready to be released, should be released from work.... Or was clearly a very poor marketing decision, some times programmers say, this is not ready and marketing comes back with a don't care sent it out anyway ..... Sent from my iPad ... View more

Victoria, Wacom or not Wacom makes no difference... It's just totally unusable. And as you can see by everyone's comments, it's not just me. Sent from my iPad ... View more

You are absolutely right. The average machine won't have a such a expensive GPUs. But my point is not even with a super expensive GPU is usable. And not even with the GPU disabled is as fast as it was. Who really needs to have face recognition? Is this software migrating from a professional software to a toy for Facebookers? LR CC is a big step back in performance in every aspect on every single machine I have installed it. And don't tell me that is a GPU can do stuff in one software does not mean it can do it in another. I work very closely with other companies that make software that use GPU to manipulate images, PFTrack, PTgui, Flame, Lustre, 3DS Max, Syntheyes, and I can keep writing names, all of them can move 8K images no problem. With the Quadro 6000 I can paint over a 16 bits floating point in Flame with the vectorial paint and the Wacom without absolutely NO lag at all. Lightroom can even make a curved like since is so slow that the sampling gives me straight lines and not curves. I'm sure it can be optimized, but this version is to me, not even worth of an early beta testing. Please go back to the drawing board and start over, a GPU like the Titan Black should smoke painting with the adjustment brush. ... View more

Well. I tested on Quadro 6000, GTX Titan Black, both are not the newest cards, but are pretty good ones, and the brush tool is unusable both with and without GPU. Being faster without GPU. Let's face it. Not everyone will have $1000 Plus cards on their computers. Graduated filters are fast, brush filters are fast to move around once you painted it, but the paint process is unbearable, unusable. And there has to be something wrong with it because from time to time is fast, then slow again. I see this happening on every machine I try. Still using 5.7.1 since most of my work is retouching and I depend on the brush tool. By the way, I'm using a Wacom. Sent from the Moon ... View more

Well, that of leaving it ON for interactivity would be true only if the interactivity was really faster, but is not, not in any of the 7 computers I have tried it on, all with powerful Quadro cards, all the operations involving graduated filters, local brush adjustments, are much slower, like 10 times slower. Loading the images on the GPU, that has to be badly optimized, the speed from the CPU to the GPU on a PCIe bus like the ones used on the Quadro cards that uses the 16 PCIe lanes is huge, on other cards where may be 4 lines are used we are talking of about 1GB per second. That is enough to move several 50 MP photos in a second. I'm using other software from Autodesk that is fully GPU accelerated and loading of images on the memory buffer of the GPU is almost instantaneous, let me add that all my computers are connected to a storage that provides sustained 1000MB/s and my laptop runs out of a stripe of 3 Samsung SSDs that gives me about 1450 MB/s and the GPU have 4 GB or RAM. So it it pretty obvious that this version of LR would be released either without GPU acceleration or with the feature presented as an experimental feature. Add to this that turning that feature OFF does not makes LR CC as fast as LR 5.7.1 is. LR CC lags behind on pretty much anything I tried, specially the local adjustment brushes. Sent from the Moon ... View more

The only speed gain I see with GPU ON is zoom in, zoom out, and PAN, other than that everything else lags behind 5.7.1 even with GPU off. Sent from the Moon ... View more

‌iI would wait until there is more optimization. I have a Quadro 6000 that is one of the most powerful cards and performance on anything other than zoom in and zoom out is faster with the GPU turned off. I think there is a lot to be done yet. ... View more

trying to keep it in the front page to see if I can get the attention of any Adobe employee caring about making this better. ... View more

Tested it also with GPU support off and it is still slower than LR 5.7.1 I posted videos comparing in my original post about poor performance on LR 6 Sent from the Moon ... View more

Actually nothing feels faster on LR CC. Check on my post which includes videos about it. Lightroom CC brush hyper slow Have 7 full CC seats , and really not happy at all with this release. Even on my HP Z820 with 128 GB or RAM and a Quadro 6000 LR CC crawls compared to LR 5.7.1 ... View more