X58 were killer & are showing their age in games
OS = W7 64 bit ? (your signature)
Use a better cooler for the CPU & push that puppy
install your OS & most used software on a SSD, 500 GB to 1 TB are cheap, you will see a BIG difference Q1) if your using a 64 bit OS you can try - though your performance might not be the best, may have to loosen the timing & go to a bigger CAS latencyBasic RAM Guide (credit Asus)
・When installing a memory kit, please adhere to the DIMM slot priority cited in the Memory installation section of the product manual.
・Please ensure all memory modules are from a single validated kit. Do not combine DIMMs from multiple kits—even if they are the same make and model. Mixing and matching DIMMs can result in failure to boot and compatibility cannot be guaranteed.
・The stability and compatibility of XMP memory kits that operate beyond the JEDEC standard is not guaranteed because it can be affected by the capabilities of the CPU’s integrated memory controller, installed devices, and the operating frequency of associated bus domains.
・Always install DIMMs with the same CAS latency. For optimal compatibility, we recommend that you install memory modules of the same version or date code (D/C) from the same vendor. Check with the retailer to get the correct memory modules.
・The default DIMM frequency depends on its Serial Presence Detect (SPD), which is the standard way of accessing information from a memory module. Under the default state, some memory modules for overclocking may operate at a lower frequency than the vendor-marked value. To set the rated speed of the kit, please select XMP(Intel)/D.O.C.P(AMD) or apply manual settings.
・When installing total memory of 4GB capacity or more, Windows 32-bit operation system may only recognize less than 3GB. Hence, a total installed memory of less than 3GB is recommended. Q2)
1080, 1080TI ---> More performance & they will pull less Watts
or maybe a 2060 Super