My hardware:
AMD 3.6Ghz Quad Core CPU
AMD 6950 Video card with 2GB VRAM (ATI card)
16 GB RAM
Win7 Pro 64 bit
Mods Installed:
Active Mod Files:
00 Oblivion.esm01 Francesco's Leveled Creatures-Items Mod.esm [Version 5.0]02 Francesco's Optional New Items Add-On.esm [Version 5.0]03 Cobl Main.esm [Version 1.73]04 Oscuro's_Oblivion_Overhaul.esm [Version 1.34]05 Mart's Monster Mod.esm [Version 3.7b3p3]06 FCOM_Convergence.esm [Version 0.9.9MB3]07 Unofficial Oblivion Patch.esp [Version 3.3.6]08 DLCShiveringIsles.esp09 Unofficial Shivering Isles Patch.esp [Version 1.4.3]0A Francesco's Creatures and Items Resources.esp [Version 5.0]0B Francesco's Optional Chance of Stronger Bosses.esp [Version 5.0]0C Francesco's Optional Chance of Stronger Enemies.esp [Version 5.0]0D Francesco's Optional Chance of More Enemies.esp [Version 5.0]0E Francesco's Optional Leveled Guards.esp [Version 5.0]0F FCOM_Francescos.esp [Version 0.9.9]10 FCOM_FrancescosItemsAddOn.esp [Version 0.9.9]11 FCOM_FrancescosNamedBosses.esp [Version 0.9.9]12 Symphony of Violence.esp13 PCSoundKensai.esp [Version 2.7]14 Days&Months.esp15 Display Stats.esp [Version 2.0.1]16 DropLitTorchOBSE.esp [Version 2.4]17 kuerteeAutoSaveAndTime.esp18 Streamline 3.1.esp19 Dynamic Map.esp [Version 2.1.1]1A Map Marker Overhaul.esp [Version 3.9.3]1B Map Marker Overhaul - SI additions.esp [Version 3.9.3]1C DLCHorseArmor.esp1D DLCHorseArmor - Unofficial Patch.esp [Version 1.0.6]1E DLCOrrery.esp1F DLCOrrery - Unofficial Patch.esp [Version 1.0.4]20 DLCVileLair.esp21 DLCVileLair - Unofficial Patch.esp [Version 1.0.7]22 DLCMehrunesRazor.esp23 DLCMehrunesRazor - Unofficial Patch.esp [Version 1.0.5]24 DLCSpellTomes.esp25 DLCThievesDen.esp26 DLCThievesDen - Unofficial Patch.esp [Version 1.0.9]27 MMM_Runeskull_Rebalance_BETA2.esp [Version Beta]28 Cobl Glue.esp [Version 1.73]29 Oblivion WarCry EV.esp [Version 1.09]2A FCOM_WarCry.esp [Version 0.9.9MB5]2B Oscuro's_Oblivion_Overhaul.esp [Version 1.34]2C Alluring Potion Bottles v3.esp2D Alluring Wine Bottles.esp2E OMOBS_SI.esp [Version 2.0]2F OOO 1.32-Cobl.esp [Version 1.72]30 FCOM_Convergence.esp [Version 0.9.9Mb3]31 FCOM_EntropicOrderRebalance.esp [Version 0.9.9beta2]32 FCOM_RealSwords.esp [Version 0.9.9]33 FCOM_DurabilityAndDamage.esp [Version 0.9.9]34 FCOM_SpawnRatesStronger.esp [Version 0.9.9Mb3]35 FCOM_NoWyverns.esp [Version 0.9.9]36 Mart's Monster Mod - No Pests.esp [Version 3.7b3p3]37 Mart's Monster Mod - No Swarms.esp [Version 3.7b3p3]38 Mart's Monster Mod - Extra Wounding.esp [Version 3.7b3p3]39 Mart's Monster Mod - Looting NPCs & Creatures.esp [Version 3.7b3p3]3A Mart's Monster Mod - No Reavers.esp [Version 3.7b3p3]3B Mart's Monster Mod - No Carrion Rats.esp [Version 3.7b3p3]3C Mart's Monster Mod - No Giants.esp [Version 3.7b3p3]3D Mart's Monster Mod - No Undead Rise.esp [Version 3.7b3p3]3E Mart's Monster Mod - No Slimes.esp [Version 3.7b3p3]3F Mart's Monster Mod - No Fiends.esp [Version 3.7b3p3]40 Mart's Monster Mod - No Beholdens.esp [Version 3.7b3p3]41 Mart's Monster Mod - No Uberhulks.esp [Version 3.7b3p3]42 Mart's Monster Mod - No Skeep.esp [Version 3.7b3p3]43 Mart's Monster Mod - Hunting & Crafting.esp [Version 3.7b3p3]44 Mart's Monster Mod - Farm Animals.esp [Version 3.7b3p3]45 Mart's Monster Mod - Diverse Runeskulls Loot OOO.esp [Version 3.7b3p3]46 FCOM_DiverseGuardUnity.esp [Version 0.9.9]47 FCOM_HungersUnitySI.esp [Version 0.9.9]48 FCOM_FriendlierFactions.esp [Version 0.9.9]49 MMM-Cobl.esp [Version 1.73]4A DLCBattlehornCastle.esp4B DLCBattlehornCastle - Unofficial Patch.esp [Version 1.0.6]4C DLCFrostcrag.esp4D DLCFrostcrag - Unofficial Patch.esp [Version 1.0.5]4E Knights.esp4F Knights - Unofficial Patch.esp [Version 1.1.1]50 SM Plugin Refurbish(Merged).esp [Version 1.30]51 FCOM_Knights.esp [Version 0.9.9Mb3]52 FCOM_SlofsHorses.esp53 Dungeon Actors Have Torches 1.6 DT.esp54 Jhaerik's Dungeon Fog Remover.esp55 Less Annoying Oblivion.esp56 Oblivifall - Ambiant Dungeon SFX.esp [Version 1.2]57 Toggleable Quantity Prompt.esp [Version 3.2.0]58 Alternative Beginnings.esp [Version 1.2.5]59 MQSDone.esp5A dyseso_Light_Ingred.esp5B DenockArrowToo.esp5C Duke Patricks - Near Miss Magic And Arrows Alert The Target.esp [Version 7.1]5D Duke Patricks - Fresh Kills Now Alert The NPCs.esp [Version 4]5E Phitt's Phighting Phixes.esp5F Atmospheric Loading Screens - No Text.esp60 Mart's Monster Mod - Wearable Werewolf Armor.esp61 Mart's Monster Mod - Diverse Runeskulls Loot beta Place After Bashed Patch.esp
Also running OSR, 4GB patch, weOCPS, OBGE.
I did the tests using game companion. Not textures installed. VRAM usage stayed around 200MB.
I conducted the test at Fort Homestead as that has a good number of enemies especially with FCOM.
I met 6 enemies at the fort entrance. I was in god mode and let them beat on me, looking around. At had a good 20-26 FPS through out the fight.
I then went inside and lit my torch. Had a group of 6 more enemies, some had torches. Combat FPS was 11-15.
Went into the final room where I had 9-11 enemies. Some had torches. Combat FPS was between 3-11, stayed arounf 5-6 most of the time.
Repeated without dungeon actors have torches, loading from the beginning save outside.
Outside fort entrance with the 6 enemies my FPS was similar as before with 20-26 FPS.
Went inside with torch. The 6 enemies here with torches had my FPS around 12-18. Slight improvement.
Went in final room with 9-11 enemies. I do not recall any torches but mine and the 2 (I think) flames burning. FPS was 8-12. Much improved.
On both test I notices that if I faced away from everyone and looked at the door my FPS would go to between 18-26, both tests.
I then disabled OSR. FPS dropped between 2-4 on both test. So OSR is a good thing to have.
What other conclusions can I draw from this?
1. Having lights in your FOV will decrease FPS regardless of the video card or processor speed, to unplayable.
2. AI processing on NPCs and their scrips is not an issue for a decent processor as these were processed during my tests, when I was not facing the NPCs. I do not know how this relates to what some call AI overload.
3. A great video card with a bunch of VRAM will not help when there are lights around. Including fireball spells.
4. If you are on the borderline with performance do not use anything that adds lights to the game - like actors have torches.
5. If you have to fight a bunch of NPCs, do it outside in daylight or have them chase you where there are least light sources.
Perhaps same can be said about number of objects, I do not know. The problem seems to me, is how the game handles the drawing of lights in relation to cpu/video card.
I am looking for confirmation of my conclusions, contradictory results (and how you got them), secrets to improve this (less known tweaks and utilities), and all around advice.
I remember when Oblivion came out people said there is no computer made yet that can run it on full settings. Well, I do not think there ever will be. If a 3.6Ghz cpu and a AMD 6950 card with 2GB VRAM cannot handle lighting well, then what will?
PS: I once mentioned that maybe the bashed patch and all the tags was a cause of the slowdowns as I do not remember that happening before. That was not the case in my tests. I did both with and without a bashed patch and could see no noticeable difference. So let me squelch that idea right here. Was grasping at straws there.