Does adjusting the CPU speed influence the performance of the integrated graphics?
Does adjusting the CPU speed influence the performance of the integrated graphics?
Hey everyone,
My R9 280X recently stopped working (a completely different situation), and since its warranty has expired, I thought about disposing of it. Right now, I'm putting together my first setup:
CPU:
G3258 @4.4GHz /w CM 212 EVO
iGPU:
Model unknown – CPU-Z says 1024MB VRAM at 599MHz clock
Mobo:
Asrock H97 Anniversary
RAM:
8GB DDR3 (stock)
GPU:
Formerly ASUS R9 280X
PSU:
Some lesser-known FSP 650W
I was surprised when I tried running games with just the iGPU (not clocked, stock speed) and titles like League of Legends, Call of Duty 1, WoW still felt quite playable, with temperatures staying low. I haven’t pushed it harder yet. My main question is: does overclocking the CPU influence the iGPU’s lifespan beyond just higher chip temperatures? I’ve heard the iGPU typically doesn’t have dedicated VRAM and uses the RAM sticks in the motherboard.
How feasible would it be to overclock the iGPU? Are there any forums where I can compare different iGPUs on compatible CPUs? If I wanted to build a new PC but wouldn’t be gaming for a while, would it make sense to buy another G3258 and clock it normally, or should I opt for an unlocked i5 and hope it has at least as good integrated graphics as the G3258? I also learned rumors that this model shares its graphics with some i3s, suggesting i5s might have even better options.
I imagine if I got a unlocked i5 with decent built-in graphics, I’d be fine for a while before upgrading to something like an RX480 Sapphire 8GB once prices drop. Would a 400W PSU be enough for a clocked i5 and an RX480? If so, I’d pass my current build to my brother and probably buy him the best GPU that the overclocked G3258 can support—possibly up to R9 280 or higher (he probably won’t play games or use hyperthreading-heavy apps).
I know some laptops have NVidia Optimus, which switches between iGPU and GPU for efficiency. That doesn’t mean two cards running together, but it makes me wonder if they can share processing power. For PCs, if I have a decent iGPU (the G3258’s built-in graphics works well for me), should I prioritize getting a lower-end GPU to ease the load on the iGPU? I’m also worried that buying a cheap GPU might waste the iGPU’s potential. Lastly, is there a way to compare the performance of an iGPU versus a dedicated GPU?
Thanks in advance!