I'm putting together a gaming PC using parts from an older system: an i7-6700K running at 4.0 GHz, 32 GB of DDR4 RAM, a 650 W power supply, a 1 TB hard drive, and a 256 GB SSD. The only parts I expect to buy are an Intel Arc B580 Challenger 12 GB and another 16 GB of RAM. I'll be gaming at 3440×1440 ultrawide resolution. Will this older CPU, motherboard, and platform work well with the B580, or will the processor and lack of newer features hold the graphics card back?
2 Answers
The 6700K is likely to limit the B580 in a lot of newer games, especially at high refresh rates. At 3440×1440 the GPU will do more of the work, but the old four-core CPU can still cause stuttering and poor minimum FPS. I’d seriously consider selling the CPU and motherboard together and moving to a newer platform rather than spending money on the B580 first.
The biggest concern isn’t just the CPU’s age. Arc B-series cards rely heavily on Resizable BAR, and the i7-6700K platform generally doesn’t meet Intel’s officially recommended requirements. Without proper ReBAR support, performance and frame-time consistency can suffer badly, so this isn’t an ideal pairing.
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