Another occasion for another experiment. This time I made use of the ongoing GPU prize craze that's been happening - selling my RX 480 4GB for $400, then adding 100 more to get a GTX 980 Ti (it's also my first NVidia card since... ever?), which is about 25-30% more powerful than the RX 480.
It also seemed like a good opportunity to find out if blaming my Radeon for lower-than-expected performance was justified or not. Also included the results of a temporary shit-tier GPU (Radeon HD 7770) I used while waiting for the new card to arrive.
Tested on: Core i5-3570K @ 4.3 GHz, 8GB DDR3, Windows 10 Pro 1709.
TF2 configuration: mastercomfig (midquality preset), 1440x900 windowed, mods: explosions, no bullet dust, no soundscapes mod
For any non-nerds out there, I'll also put the performance rating measured in percentage compared to RX 480 (data taken from TechPowerUp - relative performance).
RX 480 4GB (100%): 127.47 fps - https://imgur.com/e0m1umz
HD 7770 1GB (27%): 130,87 fps - https://imgur.com/q8odAc3
GTX 980 Ti 6GB (132%): 130,11 fps - https://imgur.com/AjVVKcM
If you told me this makes no sense, I really wouldn't argue, I don't know what to take away from this. I thought my current CPU isn't bottlenecking my system, but in the other hand, johnf's system with the same CPU (but 100 MHz higher) and a weaker card reaches 200 fps. Maybe comanglia's cfg is just so much faster, idk, I'll try this config tomorrow and update the post.
Or maybe it's the single-channel DDR3 memory... I was planning on getting another 8GB stick to get 16 gigs in total next month, I'll have to test that too.