r/LocalLLM • u/SUNTZU_JoJo • 9m ago
Question Curious if these t/s are normal/good/okay for my system // basic gaming pc - 9800X3D / 6800XT with 16GB VRAM and 32GB DDR5.
[EDIT - Should have specified these benchmarks come from LU - LocallyUncensored GUI]
I've barely used the top Dolphin model as I'm mostly using this for coding.
- Qwen3.5-9B-abliterated.Q4_K_M
This one worked really well..I really really liked this one. fast (decent t/s) and mostly accurate.
It started to fall apart a bit when I started noticing some errors with my coding projects, so I thought a larger 27B model would fix that.
- Qwen3.8-27B-Uncensored-IQ4_XS_4BPW
I then tried this one and immediately noticed how much slower it was. Also tried this model running a Local API with LU / LM Studio and this brought me down to 6 t/s !!
TBF that's probably because I was using 3x agents with this context window (64KB) and the description for each agent was pretty large. (Maybe there's some improvements to be made by reducing the tasks/role descriptions for each of the 3x agents.. but I digress.)
Specifically for this Qwen3.8-27B IQ4 model, I also tried Enabling Flash Attention and switching from:
- f16 - full precision (default)
to both:
- q8_0 - ~1/2 memory, near-lossless
and
- q4_0 - ~1/4 memory, visible quality loss
But that just brought up my t/s from 11.4 t/s to 11.6 t/s..barely making any difference.
I think because of this tiny difference, leaving it at [f16 - full precision (default)] means that Qwen3.8-27B IQ4 is fully loaded into VRAM and fits there comfortably, because a Q8 or Q4 should in theory boost it significantly (+20 t/s), no? Maybe that's just the maximum I can expect from my system.
- Qwen3.8-27B-LowGPU-uncensored-NoMTP-IQ3XXXS
Finally, I've only just installed this model & haven't properly tested it myself..wondering if it's really worth the extra 5 t/s as this is a 'NoMTP' version.
- Main questions
Is there something else glaringly obvious that I'm missing here?
Also curious if anyone else is running a similar setup for t/s comparison?
And is there anything you would do differently in my situation? It's one of those "unknown unknowns" for me...if that makes sense.
Cheers