low cache can decrease FPS?

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thekiller_boyka

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Aug 22, 2013
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i have A4-5300 apu, dual 3,4ghz with L2 cache of 1 Mb. sapphire 7770 gpu, 2x4Gb ram (1600 ), but I have less than 30 FPS in HoN (a light game) with less than 25% gpu usage and less than 60% cpu. Is that cache causing the low FPS? sorry for my eng.
 
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bgunner
Yes cache can be a reason for low FPS. It is very important to have L3 cache on a gaming CPU. Without L3 cache the CPU is at a major disadvantage. Cache is a small amount of memory on the CPU used to store data for quick access. when the chip runs out it needs to send the data to the system ram and then retrieve it, this takes a lot longer, causing a drop in performance.

read this article and it will touch on this issue enough for you to understand what the L3 cache can help with in gaming. http://www.tomshardware.com/reviews/piledriver-k10-cpu-overclocking,3584.html
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bgunner

bgunner

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Feb 13, 2009
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Yes cache can be a reason for low FPS. It is very important to have L3 cache on a gaming CPU. Without L3 cache the CPU is at a major disadvantage. Cache is a small amount of memory on the CPU used to store data for quick access. when the chip runs out it needs to send the data to the system ram and then retrieve it, this takes a lot longer, causing a drop in performance.

read this article and it will touch on this issue enough for you to understand what the L3 cache can help with in gaming. http://www.tomshardware.com/reviews/piledriver-k10-cpu-overclocking,3584.html
 
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GhislainG

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Jul 16, 2008
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While gaming, are your CPU and GPU running at full speed? Anything else runs at the same time? FPS won't drop over time if nothing has changed in the game, the hardware or the OS. Crossfire isn't as good as a faster GPU, but unless you're gaming at high resolution (you haven't told us what resolutionj you use), that HD 7770 should be fine. Buying a new mobo + CPU is not justified if the A4-5300 met your requirements not that long ago. Why did you buy the least expensive APU that you could find along with an FM2 mobo in the first place? The least expensive solution is the X4 750K, but the Fx-6300 certainly is faster and obviously more expensive.
 
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thekiller_boyka

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1440x900 monitor, but i don't wanna use anymore an APU, and the problem with my APu is that L2 cache of 1 mb, i think it slow down my PFS , I'm playing mmorpgs like Aion WoW Tera Blade and Soul (waiting to play it) , well , for mmo's i think it's enought that 7770, but the problem will be that CPU, i wanna know if an I3-3220 can handle games well, and if it does bottleneck for my GPU. I have to decide between athlon x4 750k (100w , and only L2 cache of 4m) and i3-3220 (with Ivy brigde and L3 cache , and 65 w power). On google ppl are saying that i3 is better than athlon, what should i do? It's a good idea to get i3 , or not?
 
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GhislainG

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The i3 will be faster thna the X4 750K. You don't need an expensive mobo unless you plan a future upgrade to an overclockable CPU. Will you eventually crossfireyour HD 7770? Once you determine your requirements, it will be easy to choose between a B75, H77 or Z77 motherboard. Unless power really is important, you shouldn't rule out the FX-6300. Why not read reviews like http://www.anandtech.com/show/6396/the-vishera-review-amd-fx8350-fx8320-fx6300-and-fx4300-tested or http://www.hardwarecanucks.com/forum/hardware-canucks-reviews/57615-amd-vishera-fx-6300-fx-4300-review.html where you can compare several processors and then decide which one best meets your budget and requirements?

You haven't told us what caused the FPS drop from 80 to 30.
 
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thekiller_boyka

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Aug 22, 2013
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I'm not sure what's going on with my PC and why FPS droped. I researched a lot and i found no solution. I'm not sure if I want to crossfire that 7770. It is a good idea? And will i3 3220 handle mmo games?
 
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