I'll start:

FPS: ~40 on average
specs: i7-2700k (at stock clock)
GTX 570 2.5GB

For those who didn't know, you can find your FPS with fraps or EVGA precision if you're using an EVGA card.

I didn't pay too close attention to the number (Was busy going wild!) but it was usually 50-ish.

CPU: i7 930 @ 2.8Ghz (stock clock)
GTX 470 x2 in SLI (I confirmed SLI was working with balanced loads on both cards)

Has performance monitors running on a second screen and both CPU and GPU's never went over 50%.

On a related note, I'm really looking forward to the HD textures! xD

This means nothing if we don't know what settings you're running on!

I logged in for a few minutes just to see what was up. I was busy fixing my machine and doing other stuff, and I've played TERA before so I wasn't really eager just to see the game.

I was getting solid 80 on the absolute lowest (with 32xAA + 16xAF through Nvidia)
And about 50 on the absolute highest. (with the same Nvidia settings)

I am running on:
i7 2600k @ 3.4 (not 'clocked atm, will be in the future)
MSI n570 + factory OC (twin frozr 2)
1920x1080

FPS lower than refresh rate is BAD. I'm an e-sports guy, I'm used to playing games at double my refresh rate, so 120 or 240. Playing video games at 50fps feels horrible to me, haha.

i7- 2600 Sandy Bridge @ 3.4GHz (3.8 with 8 CPU)
Radeon HD 6850
8G ram

FPS: 45-60, avg out to 50ish on max setting.
Only 60 when I am standing still tbh.
Probably need to upgrade my card if I want a constant 60, but 50ish isnt bad on max.
FPS probably will drop to 30-40 I think with HD textures.

i5 2500k at 4.7 GHz
EVGA 570 1.5GB factory OC

Was getting about 60 FPS on max settings.

i7 920 @ 3.8
GTX 580
12G ram

With all setting max running in 1920X1200 my fps went anywhere from 40-80"fps cap" depending on the area. With so many people in one area the fps drop is to be expected but even with the drop in some areas it was extremely smooth and didn't lag at all.

i5 2500k @ 4.0 ghz
8gb 1300 ram
2x 450 sli

highest setting and i was getting average 50 fps.

i5 2500K @ 3.3 GHz (stock)
EVGA GTX 570 factory superclocked
8 GB RAM

Ran it on max, I didn't check my FPS but could tell the game was running flawlessly on max. Only blips was plugging in a 360 controller and entering the game world. No problems doing 5v5+ PvP either.

Operating System: Windows 7 Professional 64-bit Service Pack 1
Processor: Intel(R) Core(TM) i5 CPU
Memory: 8192MB RAM

NVIDIA GeForce GTX 260
Current Mode: 1920 x 1080
V-Sync enabled
AA - 4x

FPS runs about 45~60 @ max preset :)

"Maxed" out preset

FPS: 60-70ish
Windows 7 Home premium
i7 2600 @ 3.4 Ghz
8GB DDr3 Ram
Sapphire ATI Radeon HD 6870 1GB