Topic Title: [Doubt] AMD A8-6800 K and Discrete Graphic Cards
Topic Summary: Bottleneck
Created On: 09/23/2013 06:35 PM
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 09/23/2013 06:35 PM
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Farfalho
Peon

Posts: 2
Joined: 09/23/2013

Hi there!

Recently, my AM2+ rig has met his maker due to a faulty PSU taking with it the motherboard. Since I'm on budget and want to have a full working PC soon, I decided on a FM2 A10 6800K because I don't need more than 4 cores because the main objectives are 1080p playback and games (medium to high definition).

I currently have an ATI Sapphire HD4870 1GB GDDR5 Toxic but planning on changing to a HD79XX family.

The problem/doubt is will the APU create a bottleneck to a discrete graphic card, in this case a HD79XX? What is the family range limit before it hits a bottleneck?

Cheers

 09/23/2013 07:06 PM
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WMudrockJr
Overclocker

Posts: 705
Joined: 04/01/2013

I have a A10-5800K and a 7850 which I play BioShock, TombRaider, Loadout, Far Car 3 plus a various older games.

I have used various monitors to capture GPU and core loads from the 4-cores. I have not noticed any bottlenecks, so your A10-6800K should do alright. Just remember speed of the memory will also effect how fluid the game play will be.



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AMD A10-5800K, XFX 7850 Ultra OC Edition 975MHz, 16GB RAM, Win 8.1 Pro 64 bit, MSI 7778 motherboard, 500W PSU, HP P7-1235, CCC 13.12 WHQL

 09/24/2013 10:54 PM
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Farfalho
Peon

Posts: 2
Joined: 09/23/2013

The memory chosen will be 8GB of 1866MHz CL9 since it doesn't require any O.C from the motherboard unlike the 2133MHz. The motherboard will be an Asus F2A85-M, probably might upgrade to the Pro version or a MSI FM2-A85XA-G65.

Meanwhile, I've been reading a lot about the "bottleneck" effect and at a 1920x1080 resolution, the load will be more on the GPU than the CPU and pretty much almost every 4 core cpu can handle the high-end segment of GPU market. Resolutions below 1600x1200 are more proned to the so called effect. Nonetheless, I really appreciate your answer and empirical knowledge

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