After killing it I quicksaved, quit, and restarted Windows XP 64 bit. Loading the game up from just after killing the behemoth I found that I soon could not even look in the direction of Jefferson Memorial without severe framerate penalties. I've since paid the FWE transport to take me back to Megaton, which runs fine. My quicksave is 6.73 MB and I create a new save every level.
My specs:
Spoiler
Intel Core2Duo 3.0 GHz
4.0 GB RAM
ATI Radeon HD4890
Soundblaster Live!
Intel Core2Duo 3.0 GHz
4.0 GB RAM
ATI Radeon HD4890
Soundblaster Live!
Wrye Flash load order:
Spoiler
Fallout3.esm
StreetLights.esm
Unofficial Fallout 3 Patch.esm
CRAFT.esm
CALIBR.esm
Project Beauty.esm
FO3 Wanderers Edition - Main File.esm
Mart's Mutant Mod.esm
FNNIguana.esm
AmyWong.esm
DCInteriors_ComboEdition.ESM
FireLightFix.esp
Project Beauty- Broken Steel.esp
Project Beauty- Point Lookout.esp
StreetLights - Wasteland.esp
CRAFT - Activation Perk.esp
CALIBRxMerchant.esp
GalaxyNewsRadio100[M].esp
CONELRAD 640-1240.esp
UPP - Pack 1.esp
UPP - Pack 2.esp
UPP - Experience Perks.esp
UPP - Quest Perks.esp
UPP - Beverage Perks.esp
megalight.esp
CanterburyCommonsEmbiggened.esp
FO3 Wanderers Edition - Main File.esp
FO3 Wanderers Edition - Alternate Travel.esp
FO3 Wanderers Edition - Followers Enhanced.esp
FO3 Wanderers Edition - Optional VATS Halftime.esp
FO3 Wanderers Edition - Project Beauty.esp
FO3 Wanderers Edition - Project Beauty (Followers Enhanced).esp
Stealthboy Recon Armor - CRAFT.esp
Mart's Mutant Mod.esp
Mart's Mutant Mod - Zones Respawn.esp
Mart's Mutant Mod - Tougher Traders.esp
Mart's Mutant Mod - Natural Selection.esp
Mart's Mutant Mod - Master Menu Module.esp
Mart's Mutant Mod - Project Beauty.esp
Mart's Mutant Mod - FWE Master Release.esp
Mart's Mutant Mod - FWE Master Release + Project Beauty.esp
AmyWong - FOSE.esp
AmyWong - CALIBR 1.3 (FWE 5).esp
AmyWong - FWE 5.esp
Fellout-Full.esp
Realistic Interior Lighting.esp
AmyWong - Load Order Fix.esp
FNNIguana - FWE.esp
FNNIguana - MMMRC6.esp
Bashed Patch, 0.esp
Unrecogised Mod Files
Reorder these by hand using your favourite mod ordering utility.
VaultTechLocators.esp
amywongmodmod.esp
Fallout3.esm
StreetLights.esm
Unofficial Fallout 3 Patch.esm
CRAFT.esm
CALIBR.esm
Project Beauty.esm
FO3 Wanderers Edition - Main File.esm
Mart's Mutant Mod.esm
FNNIguana.esm
AmyWong.esm
DCInteriors_ComboEdition.ESM
FireLightFix.esp
Project Beauty- Broken Steel.esp
Project Beauty- Point Lookout.esp
StreetLights - Wasteland.esp
CRAFT - Activation Perk.esp
CALIBRxMerchant.esp
GalaxyNewsRadio100[M].esp
CONELRAD 640-1240.esp
UPP - Pack 1.esp
UPP - Pack 2.esp
UPP - Experience Perks.esp
UPP - Quest Perks.esp
UPP - Beverage Perks.esp
megalight.esp
CanterburyCommonsEmbiggened.esp
FO3 Wanderers Edition - Main File.esp
FO3 Wanderers Edition - Alternate Travel.esp
FO3 Wanderers Edition - Followers Enhanced.esp
FO3 Wanderers Edition - Optional VATS Halftime.esp
FO3 Wanderers Edition - Project Beauty.esp
FO3 Wanderers Edition - Project Beauty (Followers Enhanced).esp
Stealthboy Recon Armor - CRAFT.esp
Mart's Mutant Mod.esp
Mart's Mutant Mod - Zones Respawn.esp
Mart's Mutant Mod - Tougher Traders.esp
Mart's Mutant Mod - Natural Selection.esp
Mart's Mutant Mod - Master Menu Module.esp
Mart's Mutant Mod - Project Beauty.esp
Mart's Mutant Mod - FWE Master Release.esp
Mart's Mutant Mod - FWE Master Release + Project Beauty.esp
AmyWong - FOSE.esp
AmyWong - CALIBR 1.3 (FWE 5).esp
AmyWong - FWE 5.esp
Fellout-Full.esp
Realistic Interior Lighting.esp
AmyWong - Load Order Fix.esp
FNNIguana - FWE.esp
FNNIguana - MMMRC6.esp
Bashed Patch, 0.esp
Unrecogised Mod Files
Reorder these by hand using your favourite mod ordering utility.
VaultTechLocators.esp
amywongmodmod.esp