Same fps at 1080p and resolutions lower than 720p?

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Deus Gladiorum

Deus Gladiorum

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I recently built my first gaming PC and I couldn't be happier. I have a Gigabyte GTX 770 that's been factory OC'ed and I have an AMD FX-6300 Vishera @ 3.5GHz. Games play amazingly well, and I can max out Metro: Last Light with no problems and a smooth frame rate. But there's one issue: I'm using my LCD TV as a monitor and it's less than 720p due to issues with having to underscale; exact resolution is 1152x684.

I'm getting a 1080p monitor soon enough, but I'm wondering: Can I actually get the SAME frames that I do now when I go to 1080p? It may seem a silly question but I was reading up on how bottlenecking and such works and discovered a few interesting things. When playing a game at lower resolutions, a higher end GPU is able to render images much faster than at higher resolutions. That of course seems obvious, but at the same time when a GPU is rendering lower resolutions so quickly, the CPU must keep up and set up the frames for the GPU to render. Thus the CPU is put under strain to do it's job as quickly as the GPU does.

So in theory, once I'm at 1080p will my GTX 770 be put to more of a test, allowing my CPU to keep up more easily and my overall average frame rate to stay the same as it does now? I'm already guessing that my CPU is bottlenecking my GPU at least a little bit, so I imagine this will even things out a bit.
 
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dannyboy2233


That depends on the person. For me, I like to have at least 60 FPS on 1080p, and I get that with my GTX 670; which leads me to ask you this; are you sure that you are getting only 60 FPS on your 720p television? Because I guarantee you that, if you don't have a broken card, you will be getting 60 FPS at 1080p with max resolutions, and much higher than that on 720p.
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Deus Gladiorum

Deus Gladiorum

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Aw, really? I've been playing at 60 fps this whole time and now I feel like a spoiled child unwilling to go back to those lesser frames. Then I suppose this is a second question, assuming my frames don't drop below 30 (And even 30 sounds ghastly now): What's more preferable, 60 fps at 720p or 30 fps at 1080p?
 
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dannyboy2233

dannyboy2233

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That depends on the person. For me, I like to have at least 60 FPS on 1080p, and I get that with my GTX 670; which leads me to ask you this; are you sure that you are getting only 60 FPS on your 720p television? Because I guarantee you that, if you don't have a broken card, you will be getting 60 FPS at 1080p with max resolutions, and much higher than that on 720p.
 
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dannyboy2233

dannyboy2233

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That's what I was thinking as well. To OP: Your GTX 770 will do great at 1080p; it will run all games at max settings, with at least 2xAA, at somewhere in the range of 60 FPS. :)
 
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Deus Gladiorum

Deus Gladiorum

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HOLY SHIT. I just forgot I've been using V-Sync this whole time for Metro: Last Light and was wondering why I wasn't getting frames higher than 60 lol. I turned off V-Sync and saw my FPS started going between 85 and 160. Holy shit. Not that more than 60 fps matters on a 60 Hz TV. I feel like 60 fps is fine, and though a 120 Hz monitor would be cool it'd only lead to noticeably indecent jumps in performance. I get it now. I also had SSAA and Tessellation both turned off. I maxed them both out and saw my FPS get closer to 45-58 fps. So here's a third question: Exactly how important are these in your opinion to viewing a game? I understand SSAA, it gets rids of nasty edgy pixels, but what does Tessellation do? Does it really increase your viewing pleasure in this game?
 
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dannyboy2233

dannyboy2233

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That all depends on what you like personally. Try out every combination and see what you like best.
 
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Ruben1515

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I recently switched over from 1366x768 to 1920x1080 and my performance is still the same. I also have a GTX 770. My favourite game "War Thunder" at 720p runs at 100fps and on 1080p it runs at 100fps too. I don't know about other games though.
 
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Deus Gladiorum

Deus Gladiorum

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Sounds like a bottleneck somewhere, probably in the CPU. What CPU do you have?
 
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Ruben1515

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I currently use an AMD A8-5800 as my CPU. Going to get an FX-8350 or maybe one of their new flagship models propably coming in 2014
 
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