Just tried r4. I stood in Markarth looking up at the waterfalls:

Vanilla: 22fps
TESVAL: 23fps
SkyBoost r3: 27fps
SkyBoost r4 fpu: 29fps
SkyBoost r4 sse2: 32fps

Which is a bit weird considering I have a AMD Phenom x3 720. Also using the fpu version made the main menu hang (no music, just the Skyrim symbol, no menu options) for about a minute. Using the sse2 version doesn't do this.

But r4 sse2 has turned Markarth from a laggy place I avoided at all cost to somewhere I can actually appreciate now, as well as abolishing FPS plummets in Dragonsreach, Riften, Solitude and just improving my FPS generally. Thanks a ton.

I am gettin an extra 2-3 fps with sse over fpu on an AMD processor, too. AMD Phenom II X4 965 Black Edition @ 3600 mhz.

OS: Windows 7 Ultimate 64-bit Service Pack 1

CPU: AMD Phenom II X6 1100T Black Edition ~3.3GHz

GPU: Sapphire Radeon HD 5870 Vapor-X Video Card, 1024MB

GPU: Driver AMD Catalyst? 12.1 Preview driver

Memory: 16GB
-----------------------

No Skyboost or TESVAL just a lot of texture mods
whiterun - 26
marketh - 20
riften - 23
windhelm - 26
---------------------
Skyboost R4 fpu & lots of texture mods
whiterun - 41
marketh - 29
riften - 32
windhelm - 35
------------------
Skyboost R4 sse2 & lots of texture mods
whiterun - 45
marketh - 30
riften - 32
windhelm - 37
------------------
Skyboost R3 & lots of texture mods
whiterun - 38
marketh - 28
riften - 29
windhelm - 32
------------------

While I got better fps with R4 fpu and sse2, I could not make a run from the cave exit from helgan to Whiterun and back to the cave without several silent CTD's along the way. with both fpu and sse2. The CTD's were not in the same place each time... they were random each time. I also tested trying to make the run on foot from Whiterun to Marketh then back to Whiterun, same thing lots of random CTD's with both fpu and sse2.

I installed Skyboost R3 to compare. While the fps was lower I got no CTD's during my test runs from the cave exit from helgan to Whiterun and back to the cave. Nor did I get any CTD' s on the run from Whiterun to Marketh and back to Whiterun.

stuttering, tested in labyrinthion, especially big entrance hall (where the skeletons and the dragon are) good frames (40-50), but every 2-3 seconds the stutterings were there. it felt like i was faster moving, then the game could deliver the necessary information. i switched back to the fpu-version (playing on an amd) and then it worked fine.

I get stuttering only indoors, not all indoor locations though i.e. stutters in dragonsreach kitchen and the arcane enchanter room but smooth as silk in jarl's quarters. Using R4.

I've tried TESVal and Skyboost from the beginning and was amazed by the difference it made.

Now with Skyboost V4 things are ridiculously good!
On my test spot in Markarth (looking towards the city with the door of Understone Keep in the back) I get:

Vanilla: 35 fps
TESVal 3: 44 fps
Skyboost V4 SSE2: 55+ fps

This is almost too good to be true

My system: Win 7 64, i7 950 @ 3.6, AMD 6850 1024mb, 1920x1080, ugrids 7

I'll have to keep on testing for possible bugs but V4 seems to be stable for me so far. I'll report back if I run into crashes or stuttering (other than the engine related 64hz stutter).

P.s.:
I read Jaelea posts about the crashes in the test runs. I made one on my system from Helgan to Whiterun and back and had no crashes at all.
I'm no expert on the matter but one possible explanation for the crashes of Jaelea could be higher fps = higher wattage on the graphics card = higher temps = higher possibility of crashes?
Jaelea, maybe you could monitor the temps of your graphics card during the runs with different Skyboost versions?

No CTDs here - R4 is running great!

Yes i quoted myself...easier to report back.

That crash (@3 hours into fresh R-4) must have been a isolated instance. I went back last night ran 4 hours....Today i have played a 6 hour session. No crashing. Smother game play,

Took a break to do housework...but will return to game in a few, should get another 6-8 hour session in...hahaha R-4 looks to be Golden.

Even tho I am on an Intel chip, should I try the FPU?...can it do anything other then, silent crash?

R4 has been working very nicely when using sse2, but I'm getting pretty bad stutter and lag when using fpu, which doesn't make much sense since I've got an amd chip.

OS: Windows 7 Home Premium 64-bit
Processor: AMD Phenom II P820 X3 1.8Ghz
RAM: 3GB
Graphics: AMD M880G with ATI Mobility Radeon HD 4250

Running on Mid-High settings with a fairly constant FPS of ~26 (sse2)

R3 (No mods, Ultra settings @ 1920x1080)

Whiterun: 49fps
Markarth: 44fps

R4 w/ SSE2 (No mods, same settings)

Whiterun: 55fps
Markarth: 48fps

I havent noticed any side effects with R3 or R4 vs. Vanilla, just boosted performance, Thanks!

i7 920 @ 3.36ghz / 6gb / GTX 480 1.5gb / X-Fi audio / Win 7 64

I believe some reports of users having silent CTDs with r4 are valid. When I build r3 with XE 12.1 and targetting SSE 4.1 - it runs just fine. Now with r4 - no matter what options i use it will crash with silent CTD after running for several mins.

P.S. If some other guys with Intel CPUs starting with Penryn C2D ( E8XXX etc) and newer are up to testing my custom build of SkyBoost - here's a link: http://www.multiupload.com/63UIYJWSLP
It is based on r3 sources, so should be comparable to that build

i7 840QM here, and your custom version works fine (1-4 fps better than original r3 maybe...)

Here are two benchmarks I did.
CPU is Phenom II X4 965.
SSE and FPU perform very similar, although the later parts in the Intro show a slight advantage of FPU.

[img]http://i39.tinypic.com/aak9z5.png[/img]

17 FPS in Whiterun

thanks....again!r4 fpu gives me about 4-5fps more than r3.On vanilla and high settings i was getting 29fps at dragonsreach.Now on ultra except shadows i get 44.Some stuttering in caves but i don't really care!GREAT WORK THANKS!
amdx6 1075T 3.5 btw

No CTD on both versions.
Same FPS on both versions.
3 FPS over R3. Good work

AMD Phenom II 1100T 3.7ghz
8GB DDR3 1333mhz
EVGA GTX 560 Ti 880/1760mhz
1TB HDD 7200rpm

Well since the post I did earlier today, the ATI Radeon HD 6990, I had ordered last week, got delivered to my doorstep. Rest of my rigs stats are in earlier post...

So after getting it installed, updated, and setting up my game... I started testing to see if the new video card would make a difference...

I have yet to be able to make a clean run as I posted in my earlier post multiple silent CTD's with both fpu and sse2. I am watching my video card temp.. I even installed FPS Limiter to keep my FPS steady at around 45... really no sense in letting it go to 60 or above cause this isn't a FPshooter.

I will be running along the road toward my destination ... fps is basically steady no stuttering ... then bam no more Skyrim. Totally random where it happens...

With Skybooster R3 I have NO silent CTD's... game runs smooth ....

If you want to do Benchmarks that run close to 60FPS, remove the framelimiter.

Thanks for putting this on Nexus finally, Alex

What do you guys use to build the source to target a particular feature set? Is the free visual studio good enough?

Running Skyboost r4 SSE2 version with an overclocked Core2Duo E8400 and an NVIDIA GTX 560 with the latest beta drivers. Played a few hours and not a single CTD seen. On the Whiterun Dragonsreach steps with r4, I am getting 33 FPS, whereas with r3 i was getting about 30 FPS. It is running so well, I don't even bother checking FPS any more, unless it's for science.

Here is a test comparing Alex's r4-fpu, r4-sse2 and DariusD's r3-sse4.1.

Intro Level

http://oi42.tinypic.com/2wn8s8z.jpg

Note that I labeled it wrong thinking it was sse 4.2, it should say sse 4-1.

Oh and I should mention that the sse4-1 had the physics bug out, in the intro level the the cart's would bounce up, vertically, including the cart the player is on when passing a certain point along the predefined route.

On my Intel i5 2500k (no oc), 4gb 1333mhz ram and my XFX 6870 :

Falkreath: vanilla=42, r3=56, r4FPU=60, ,r4SSE2=60
Markarth: vanilla=32, r3=44, r4FPU=44, ,r4SSE2=48
Riften: vanilla=37, r3=50, r4FPU=53, ,r4SSE2=53
Solitude: vanilla=32, r3=49, r4FPU=53, ,r4SSE2=53
Witherun: vanilla=39, r3=60, r4FPU=60, ,r4SSE2=60


I'm constantly using r4 SSE2 to play since last 2 days. The only thing i've to report is....that run like a charm ! Played for over 3hours going everywhere, buying/selling stuffs, killing npc, doing quest and traveling around the world without ANY kind of problem. I repeat, i do normally 2 session of 3hours each of gameplay, the last 2 days with r4 SSE2 and never got a ctd. Will continue to test it. ALL OK till now

Thnx again Alexander !



E D I T :

PS: For all the guys still getting stuttering after 30mins/1hour of play, say bye bye to your "clutters" enhanced textures. As i tested it, mods that expand clutters textures will give that horrible stuttering everytime u exit from an house/shop/tavern ecc. Probably bcause the engine need to clear cache or ram or videoram, dunno exactly, and the clutters seems to be too "heavy".
Give it a try. Delete ur "clutters" folder from ur "Data\Textures\" and start to play like first time u did. No stutters anymore after 30mins/1hour of play.
Use mods as u want, but use brain and test them ALWAYS. Something wrong with ur last addon ? delete it.

another option to get back some vram and reduce vram deficit stuttering is to use the console "pcb" command.

this purges the cell buffers and will lower vram usage. vram will slowly increase again as u enter and exit cells (walking through the countryside or entering buildings etc).

simply use the pcb command regulary to keep vram under ur cards limit. of course u need to be sensible, if u run a large number of texture mod u are going to be pushing ur vram limit even with pcb usage.

Since r4 I noticed micro stuttering. I got i7 870 and use SSE.