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Possibly swapping from amd to intel. - Page 5

post #41 of 78
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So after reading through everyone's comments I'm thinking of staying with the fx and upgrading to 16gbs of ram and tweaking my oc to around 5ghz then maybe adding in another 290 would be a better option.
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post #42 of 78
Quote:
Originally Posted by Xaphan187 View Post

So after reading through everyone's comments I'm thinking of staying with the fx and upgrading to 16gbs of ram and tweaking my oc to around 5ghz then maybe adding in another 290 would be a better option. 

 

Sounds good if you go that route I would go for a pair of fast 8s instead of more 4s 2400mhz should be fine

post #43 of 78
Thread Starter 
Quote:
Originally Posted by ozlay View Post

Sounds good if you go that route I would go for a pair of fast 8s instead of more 4s 2400mhz should be fine

Oh definetly I know better then mixing sets of ram.any recommendations?
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post #44 of 78
Quote:
Originally Posted by Xaphan187 View Post




Oh definetly I know better then mixing sets of ram.any recommendations?

 

I would just go Snipers again as they fit your color theme pretty well http://www.newegg.com/Product/Product.aspx?Item=N82E16820231673

 

Also if buying brand new the a 390 will crossfire with your 290 so get which ever is cheaper :)


Edited by ozlay - 2/8/16 at 1:16am
post #45 of 78
Quote:
Originally Posted by philhalo66 View Post

who knows then maybe there was some unseen problem with my AMD setup because i went from 29-34 fps to over 100 just by switching from FX6300 to my 3570K. and it may not be relevant anymore but crysis 1 is a game i still play and on that game especially the later levels i more than tripled my framerate. even at 5GHz on the 6300 it struggled for 20 fps but my 3570K stock never drops before 70 fps.

I can't vouch for your exact numbers, they do seem crazy high, but I do know that the original Crysis can be very CPU bound in sections, as it only utilises 2 cores.

In such a case an overclock Haswell/Skylake would smash an FX chip.
post #46 of 78
Quote:
Originally Posted by Gumbi View Post


I can't vouch for your exact numbers, they do seem crazy high, but I do know that the original Crysis can be very CPU bound in sections, as it only utilises 2 cores.

In such a case an overclock Haswell/Skylake would smash an FX chip.

 

crysis 1 is old i get about 90fps on my 8350 at 5ghz which is plenty for the average gamer OP should be able to get more with his 290

 

Sure the skylake might be faster but do you really need more then 90fps? For a 8+ year old game? Hopefully newer games won't be cpu bound.


Edited by ozlay - 2/8/16 at 4:58am
post #47 of 78
Yes Frostbite is one of the best engines for multithreading, and i will leave this so you can analyse.

http://www.hardwarepal.com/battlefield-4-benchmark-mp-cpu-gpu-w7-vs-w8-1/





AMD FX-8350 have tons of free resources, while i5 and i3 CPU´s are satured. So this goes against your claims.

And the other dude says Crysis 1 run with 20fps with FX @ 5.0 Ghz and GTX580, this is a joke or a tipical PEBKAC. CPU throttling or GPU issues, i do not have a sinlge problem running Crysis1 maxed out with a stock FX-8350 !

thumb.gif
Quote:
Originally Posted by Cyro999 View Post

Your benchmark is of an extremely CPU light section of the singleplayer campaign - the CPU's at 2.5ghz could still handle it fine. Hardware requirements are very different in 64p MP and the game does tend towards being CPU bound at higher framerates.

TwMCsED.png

While Frostbite is one of the best engines for multithreading, it's still highly reliant on ST performance - otherwise the 8350 with a 200mhz advantage would be almost neck and neck with the 6600k instead of being behind by 1.35x. It it wasn't one of the best threaded engines, it might be behind by 1.5 to 2x instead - take that as an example.

Edited by jclafi - 2/8/16 at 6:49am
post #48 of 78
Quote:
AMD FX-8350 have tons of free resources, while i5 and i3 CPU´s are satured. So this goes against your claims.

No, it doesn't. It actually backs them up. Even the best engines like Frostbite leave a ton of resources idle on an 8-threaded chip due to Amdahl's Law:

https://en.wikipedia.org/wiki/Amdahl's_law
https://www.youtube.com/watch?v=HwitUDD0B1A

this shows as far lower FPS and low utilization when stressed compared to a CPU that would otherwise perform equally, but with fewer stronger threads. This is the biggest problem with spreading performance across fewer, weaker threads - it's much harder and less efficient to utilize for some workloads, even impossible sometimes. Notice how it's at both lower load AND lower FPS (by ~1.2x compared to last gen i5) - you can't simply double the utilization and double FPS. It's already working with the main thread as fast as it can, which is limiting performance in parts of gameplay and minimum FPS even in that gameplay as low as ~60fps.

A gtx770/7970 is not capable of enough FPS at 1440p to stress those CPU's that well on frostbite (which actually runs well, as long as you're using Nvidia driver or Mantle). In order to run into CPU limits in that particular situation, you would have to use easier graphics settings OR a better GPU - current gen flagships like a 980ti or Fury X is about 2.5x faster.
Edited by Cyro999 - 2/8/16 at 9:05am
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post #49 of 78
Cyro is right, it backs up his claims, not yours. I was actually confused when you brought it up to be honest because it suddenly seemed like you were agreeing with the other side all of a sudden rolleyes.gif

If the FX is being used less it means there are unused resources (obviously). One should use a high end GPU to remove potential bottlenecks (or use a graphically negligible therefore making it high CPU bound) in order to test a scenario in which a CPU has room to stretch its legs. In those cases, it brings to light quite a few real world scenarios in which the FX chip gets trampled by a Haswell/Skylake chip.
post #50 of 78
Well that´s what multithread is all about, help the main thread (that are processing in sequencial mode) to process data faster, parallely.

Each Thread must be independent, using just syncronize methods to contact each other in the process. Most today bottleneck scenarios are, in fact, created by Software limitations, not Hardware. That´s why Mantle put AMD chips on par with Intel in games that support it, and i am aware of the Amdahl's Law.

i7 4770K = 8T CPU - M.T Sharing Resources.

FX 8350 = 8T CPU - M.T Sharing Resources.

Same scenario but the i7 have better single thread. In the end, just marginally diference in fps between both CPU´s, and both not 100% loaded.

Why such small diference since i7 S.T is way faster? Because M.T remove potencial single thread bottlenecks from the AMD system, that also exists in the Intel System, but less evident.

We must realize that even if the game engine uses 8T, do not mean it will saturate all of then. Each Thread Workload has its demands and purpose.

The way you say, we will never be able to see a 100% saturaded AMD/Intel 8T CPU, i do not agree. But we do know that we will not have 100% increase in performance per core count, with multi threading.

Nice "Amdahl's Law" explanation in the VID.

thumb.gif

EDIT: For the 20fps Crysis1 dude, here a simple image of GPU load using Crysis1 maxed out 8X A.A Ultra, GPU always full load, only one core being really taxed, CPU @ 5.0Ghz pushing R9 280X O.C (1100/1500) to its limits in a Single Thread game, and using CPU bound (low end) 1680x1050 resolution. No CPU throttling.


Edited by jclafi - 2/8/16 at 4:02pm
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