# Enormous File Sizes **URL:** \ **Category:** General\ **Tags:** reviewed\ **Created:** [August 7, 2023, 9:59pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744 "2023-08-07T21:59:25Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![eh117](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/e/a8b319/32.png) [@eh117](https://community.topazlabs.com/u/eh117)\ **Post date:** [August 7, 2023, 9:59pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/1 "2023-08-07T21:59:25Z")
I recently converted from AVC to Topaz. The Auto settings on my Topaz enhancements always seem to select the highest bitrates (around 180 Mbps on average), but the lower bitrates produce quite noticeably lower quality outputs. AVCLabs video enhancer AI produces reasonably sized files (only around 12 Mbps on average, which is common for commericial 4K videos), with only marginally lesser quality than the Topaz AI. I’d much rather have a 1.7 GB file than an 18 GB file, especially if the output quality is still very high. How can I replicate this kind of video rendering optimization with Topaz? ---
**Author:** ![ida.topazlabs](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/i/bbce88/32.png) [@ida.topazlabs](https://community.topazlabs.com/u/ida.topazlabs)\ **Post date:** [August 8, 2023, 4:43pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/2 "2023-08-08T16:43:03Z")
> [@eh117](#): > > to settings on my Topaz enhancements always seem to select the highest bitrates (around 180 Mbps on average), but the lower bitrates produce quite noticeably lower quality outputs. AVCLabs video enhancer AI produces reasonably sized files (only around 12 Mbps I would select the bitrate you wish to use instead of using auto. As mentioned, auto will currently choose a high bitrate. We are working on lowering the bitrate used for auto 🙂 If you are seeing a lower export quality that you think should be occurring, please let me know. ---
**Author:** ![eh117](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/e/a8b319/32.png) [@eh117](https://community.topazlabs.com/u/eh117)\ **Post date:** [August 8, 2023, 5:01pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/3 "2023-08-08T17:01:42Z")
Yes, I’ve processed videos at 12 Mbps (to 4K), and quite frankly they looked awful, especially compared to the 180 Mbps or even the default 12 Mbps (variable bitrate) from AVC. ---
**Author:** ![collinstrevor25](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/c/f475e1/32.png) [@collinstrevor25](https://community.topazlabs.com/u/collinstrevor25)\ **Post date:** [August 8, 2023, 9:20pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/4 "2023-08-08T21:20:26Z")
Personally, I do a trial export of about 5 to 10 minutes of video with the output set to 180Mbps. Then I look at the actual bitrate generated. Depending on the source, the model used and the amount of noise that survives, I find most of my 4K upscales come in at between 16Mbps and 32Mbps. ---
**Author:** ![jo.vo](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/j/f19dbf/32.png) [@jo.vo](https://community.topazlabs.com/u/jo.vo)\ **Post date:** [August 8, 2023, 9:29pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/5 "2023-08-08T21:29:20Z")
Not really a solution, but a workaround: Since Topaz’ video encoder isn’t really optimized and only sparsely configurable I normally choose a HQ big file-size output that should be transparent in quality (e.g. h265 120Mbps). After the Topaz export has finished I then downsize the exported file with handbrake that allows you to get real high quality in a moderate file size (e.g. using h265 RF 24 with preset medium or slow). Since handbrake runs on the CPU cores (or the special HW encoder if you chose hardware encoding) and Topaz runs on the GPU and/or Neural engine you can run both tasks simultaneously without much speed loss for either. ---
**Author:** ![ida.topazlabs](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/i/bbce88/32.png) [@ida.topazlabs](https://community.topazlabs.com/u/ida.topazlabs)\ **Post date:** [August 9, 2023, 4:08pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/6 "2023-08-09T16:08:51Z")
I wonder if this is due to the bitrate or the level of editing? Hard to say, could you post the TVAI export and the AVC export at 12mbps? You can securely submit your files(s) to our Dropbox using the link below. Please be sure to send me a note to let me know you sent something. [Submit File to Dropbox](https://www.dropbox.com/request/sQ5MoNF4tjy8ouqVhZnL) ---
**Author:** ![eh117](https://community.topazlabs.com/letter_avatar_proxy/v4/letter/e/a8b319/32.png) [@eh117](https://community.topazlabs.com/u/eh117)\ **Post date:** [August 13, 2023, 11:25am UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/7 "2023-08-13T11:25:27Z")
Please disregard this thread. I’ve found that manually selecting the lower bitrates still produces a high-quality output, but with a reasonable size. They don’t look ‘awful’. Thanks again for your great product! ---
**Author:** ![Akila](https://community.topazlabs.com/user_avatar/community.topazlabs.com/akila/32/105312_2.png) [@Akila](https://community.topazlabs.com/u/Akila)\ **Post date:** [August 18, 2023, 10:30pm UTC](https://community.topazlabs.com/t/enormous-file-sizes/49744/8 "2023-08-18T22:30:55Z")
you might want to have a look on the new features that were introduced. > [@Dynamic compression for H264/H265 (August 2023)](https://community.topazlabs.com/t/dynamic-compression-for-h264-h265-august-2023/50214): > > New Dynamic compression option for H264/H265 Why change the export options? Users frequently ask about the ‘best’ bitrate setting for their Video AI projects, and the answer depends on many different factors including the content of the video, its resolution, and the display size that it will be shown at. A new solution: To simplify this step of AI processing, we’re introducing a more efficient way to export files in Video AI starting with NVIDIA and AMD GPU users on Windows. The new Dynamic …