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my gpu usage is at 54 celsius on sl when not doing anything


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Basically, the same reason for this is the same reason SL runs like you're trying to run a brand new AAA videogame on a ten year old machine, despite having graphics straight out of 2004.

 

Nobody optimizes anything they create and upload to SL. So even if you're standing perfectly still, your videocard is constantly shifting textures in and out of memory because you're literally surrounded by multiple gigs of textures at any one time. It's not uncommon for a single avatar to have half a gig of textures plastered to them, as well as more polygons than an entire level map from the latest Call of Duty. So every time an avatar wanders in and out of your draw distance, your videocard is trying to load the equivalent of an entire videogame level map.

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Operating temperatures for the GTX 750TI and similar cards is 25C (Idle) to 69C ( 3D Gaming Load), so you are in the normal operating temperature.

However, you can lower that temperature by ensuring that you keep your gaming case and filters clean of dust and other obstructions. When people complain of slow running systems, video artifacts, etc it is 95% because the case is dirty inside. Take your system outside, open that case, and blow it out with some Dust-Off.

You can also help lower the operating temperature of your GPU (video card) by lowering the temperature of your gaming case overall by adding more fans, or even adding a CPU watercooling unit.

Everything in your case generates heat, so dissipating this heat and increasing airflow helps everything.

GPU-Z can help you monitor your Video Card temperature, as well as give you important information about it.

CPU-Z for monitoring your cpu and system specs.

CORE-TEMP can help you monitor how hot your CPU is getting, many cpus nowadays run very hot if they don't have water-cooling, and can contribute greatly to the case temperature.

Also, as Penny Patton mentions earlier, just arriving on your average sim is going to tax your GPU. You will have load up hundreds of megabytes of unoptimized mesh and over-sized textures from the entire scene and present avatars. Some sims for me are untouchable - not really from the burden to the GPU but rather the unbearable lag and low frame rate.

Many SLers will be quick to blame you, your video card, your system, and maybe even your grandma to excuse why their sim is so slow, and why you cant load up the millions of polygons and textures from the avatars present - but be sure, the optimization falls on SL, its sim owners and such. Throwing more money at it for high-end components will alleviate the problem in the short term - but the problem lies in Second Life itself, and what it's content creators make and upload.

You can see this all in action by opening up Develop->Console->Texture Info and you can view the textures loading into your video card's buffer first hand.

You can get general feedback as to your latency, performance by using Advanced->Performance Tools->Statistics Bar.

Keep in mind, that unlike other '3D Applications" like SkyRim, CS:Go, World of Warcraft, etc everything from lights and shadows is rendered real-time in SL, so will indeed tax your GPU much more, so just be prepared for that.

Content creators will work on our end to optimize our meshes and use size-appropriate textures to alleviate the stress on user's machines.

Good luck!

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