Gaming PC Video Card and CPU question

Clairvius

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Aug 14, 2014
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I just recently built a HTPC for my living room that will double as a gaming rig. I want to display it on my 55' 3D tv, but I am getting some video issues. I've notice that some games run slightly choppy when you move the camera quickly or change positions fast. It'll have a noticeable horizontal scan-line that will come and go in high speed game-play. Was wondering if this was a CPU issue or would upgrading to a better video card solve this. my pc specs are as follows.

CPU - Intel Ivy Bridge i5-3570k
Ram - Corsair Vengence DDR3 - 1600 at 16GB (4X4)
Video - ASUS DirectCUII GTX 760 at 2gb
Power - 600w
Windows 7 running on a 128GB SSD games running on a 2TB HD

Really don't want to do a SLI setup so was thinking about upgrading to a HD7990 or a GTX TITAN if that will fix my issues. Just would hate to spend $500+ on a video card, pluss I would also have to upgrade to a bigger power supply, and get the same issues due to bottlenecking somewhere. Any advice? Thanks
 

carowden

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Jul 11, 2012
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have you tried turning vsync on? it sounds like you're running into tearing more than frame rates being too low. try turning vsync on in the games video/graphics settings and see if that fixes it. also use a program like fraps to see what your frame rate is (it is probably above 60 if you're seeing tearing).
 

Clairvius

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Thanks for the suggestion Carowden I will check on vsync when I get home and also will install fraps. I did run a benchmark program on Thief and it was only running 28 min - 58 max fps on the ultra setting
 

Clairvius

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Checked it out vsync was enabled still getting problems probably due to that i can't hit 60fps on ultra on any games but Battlefield 3. So now for the big question should i grab another ASUS GeForce GTX 760 DirectCU II and run SLI or just upgrade to a HD7990 and run a single card?
 

Racinglife12

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Well the bigger the screen the more power the GPU needs to deliver to power all those pixels. I had a 18.1'' Atec monitor (a square one) an i got 200+ fps on Sniper Elite V2 on everything Ultra. Now with my BenQ GW2760HS 27'' I get around 80fps (still good) That could be the issue. Try on another monitor and see if your problems still exist. If so, then something is wrong.

When it still happens, do this:
1. Put another COMPATIBLE GPU in the pc and take the original one out. If this still happens try this.
2. Replace the cpu with another compatible one. If it still happens try this.
3. Replace both the GPU and CPU and see if it still happens.


I wish you luck
 


That is not true at all. Screen size does not matter. Screen resolution matters. When you jumped from 18" to 27", what really affected the framerate was the resolution increase. You say your previous monitor was square, so it was probably 1024x768. Your new monitor is 1920x1080. That's what affected the performance, not the size.

It's also not required for a game to be over 60 fps for tearing to occur. Being over 60 fps makes it virtually constant, but even below 60 fps it will still happen noticeably. Vsync does fix it ofc, with some drawbacks. Gsync and Freesync aim to eliminate the problems of Vsync, but they're not mature tech yet.

Back on topic...

The GTX 760 and i5-3570K should be capable of 60 fps on ultra in most games, provided you're at 1080p and don't go crazy with the antialiasing (very inefficient artificial resolution increase). The GTX 760 will struggle in newer games at 1440p. What resolution is your TV?

The HD 7990 is not a single card. It's 2 cards stuck together, just like if you got another GTX 760 for SLI.
The strongest true single video cards on the market are the GTX 780 Ti, the R9 290X, and the Titan. The Titan is overpriced and performs nearly the same as the GTX 780 Ti. The GTX 780 Ti and the R9 290X are the two best options for 1440p or above. However, unless your TV is 1440p or above, or unless you're running 3D in games, a video card upgrade should not be required.
 

Racinglife12

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Yea sorry i meant resolution.
I am really tired so i didnt think of that xD
 

ZeusGamer

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If you're TV is less than or equal to a resolution of 1080P? You should be fine. Try turning off VSYNC and see if that helps VSYNC makes sure that your GPU and monitor have the same refresh rate, in most cases, 60 FPS. What happens when your GPU can't handle the game for at least a second or two, instead of the frames dropping to 59, 58, 57, etc. It'll actually drop straight to 30 FPS.
 


That hasn't been a problem with vsync for several years, in most cases. It's very rarely buffered so unstably anymore. Nowadays it can usually decrease normally, with your framerate.
 

ZeusGamer

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I think that only applies if triple buffering is turned on.