Where do I top out on a GPU?

gn842a

Honorable
Oct 10, 2016
666
47
11,140
When I built this computer I was fed up with my Computer Renaissance prebuilds which lasted 18 to 24 months before needing replacement (they were very good about that, if you got the extended warranty). When I finally decided complete collapse on such a regular basis was abnormal, I started watching youtube and Newegg videos and made my first computer. My goal was to make a nice, midrange, durable desktop with better quality components.

Unfortunately, I've succeeded. It's worked flawlessly for three years, and I have no reason to wish to replace it.

I get the distinct impression from reading these and other fora that if I really want to move the benchmark up from say 18% on gaming to 35 to 50% on gaming (and stick with AMD) that I'm just going to have to break down and build a new computer. (I don't really need to score 85 to 100% on benchmarks, the problem is, I just enjoy messing with computers--so moving up to 50% would be a nice goal for now). I'm already at 50% (UserBenchmark) as a generic desktop, but only 18% gaming.

So my question is: can I jazz this thing up with a fancy GPU? The current GPU is a humble obsolescent HD 6670 which I selected because it doesn't need fans, and noise is an issue. (I originally needed the GPU card to run dual screens, this desktop powers the home theater). And when I built, I was fetishizing durability, and my theory was that lower temps mean longer life.

So here's the current build....

ASUS F85 V pro
AMD A-10 5800k w/Noctua cpu heat sink
16 gigs ddr3 1600
850 Watt Thermaltake platinum
OS is on a Samsung 850 Evo, 500 gig
HD 6670 (which one might wish to replace, but it works fine)
The case is well ventilated with one five inch fan on intake and a five inch and a four inch on exhaust. The system runs pretty cool, though how cool depends on what software you're asking.

Having done some research on these fora my impression was that about the best I could do for a graphics card that would go with this build was an R9-270, one of which I've actually bought to install upstairs on an almost identical build. But I'm wondering how high one could climb in the Radeon line and still be compatible with the equipment listed, and boost performance. I'm a little unclear about this, as I seem to have read that there was an upper limit to what would work with a graphics card, but it was in an article on crossfire, and may have meant in crossfire applications only. I will have to be careful to make sure that outputs remain compatible with the home theater, but I think it would work out OK.

If the only realistic alternative is new CPU new mobo new video card, well that will likely happen later rather than sooner. I'm working between my inherent cheapness and my desire to tinker and improve.

I'd prefer to improve "native performance" without overclocking.

Thank you for any thoughts,

Greg N

 
Solution


Any Radeon or Nvidia GPU, and yes it would be transferrable. However, I might not spend that much on a gpu now if you're planning on waiting that long to upgrade the rest of your system. There will be newer and better models out by then.
You can replace the GPU, but you may not get the same performance that you're seeing in benchmarks in some games. The 5800k is pretty weak as far as CPUs go. If I were you, I'd get the best GPU that I felt comfortable buying right now and then save up some money for a new CPU and motherboard purchase later. If you want to get the most out of the majority of current GPUs in modern titles, you really need to be on Intel.
 

Eximo

Titan
Ambassador
Not much to do with the CPU, already about as fast as the only viable replacement. Athlon 760K.

You have no really limit on a GPU with such a huge powersupply. Bit unbalanced there really. Enough there for 3 or so.

You were probably reading about Hybrid Crossfire which is possible with the APU you have. RX460 or RX480 4GB wouldn't be a terrible idea if you want to stick with AMD, certainly better then a 270.

CPU will be a bit of bottleneck on some newer stuff, but if your goal is a higher gaming score, that would certainly do it.
 

gn842a

Honorable
Oct 10, 2016
666
47
11,140
Are you saying I can just go out and pick any Radeon currently on the market and it will be compatible? So if I bought a much better gpu it would be transferrable to a new build in a year or two?

thanks,
Greg N
 


Any Radeon or Nvidia GPU, and yes it would be transferrable. However, I might not spend that much on a gpu now if you're planning on waiting that long to upgrade the rest of your system. There will be newer and better models out by then.
 
Solution

gn842a

Honorable
Oct 10, 2016
666
47
11,140
Is there a *liability* to having too much psu? Seems to work fine....been that way for 3 years....and it does have the Japanese capacitors, so there's that. I hooked up an amp meter a few days ago to the desktop power supply and determined the amperage draw at about .4 to .5 amps streaming video and messing around on the net. That's about 60 watts to power the whole case. I was interested in how much it cost to operate and just wanted to know what the draw was between the desktop and the wall outlet, not all the different wattages spec'd on the individual components.
 
Power supplies are most efficient at about 50% of their rated power draw in most cases. There's no liability to having too much PSU, but the extra amperage limit you purchased could have gone towards higher quality caps. It's no biggie and you'll be fine, just something to think about next time you build. If you never plan on adding a second GPU then I would never get anything more than 500-600W. A PSU like this would power your system perfectly and have room for growth with more reliability and lower ripple, but there's no reason to replace your current one.

https://www.amazon.com/EVGA-SuperNOVA-Modular-Warranty-120-G1-0650-XR/dp/B00K85X2AW/ref=sr_1_1?ie=UTF8&qid=1476484525&sr=8-1&keywords=gold%2Bpower%2Bsupply&th=1
 

gn842a

Honorable
Oct 10, 2016
666
47
11,140



Yes in fact I'm in the U.S. and $130 is not a problem. Even $300 is not a problem, but it might be the case that there's only so much ribbon one can put on this pig. Actually the current build is not a pig, it does exactly what I built it to do, it's just that in the process I've learned a bit and I've moved the goal posts on it. Greg N
 
You might even want to buy used if you're comfortable with that. You can get a used GTX 780 for the price of a new RX 460 on ebay which will give you better performance and 770s run about $100. Since you're only planning on running it for a couple years it seems like a good option to me.
 

gn842a

Honorable
Oct 10, 2016
666
47
11,140
After a bit of google research I read that the symptom of bottlenecking by the CPU of the GPU is a leveling off of performance as you turn features on, and that it can also be seen by monitoring CPU and GPU usage. So I take it the symptom would NOT be a freeze up in the game or something truly awful like that. I would have to be paying attention.....I've been checking the hdmi dvi outlets on the back of gaming cards and find they will be compatible with my current two desktops, so that's encouraging. thanks, Greg N