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is this bottleneck?

post #1 of 5
Thread Starter 
thinking of upgrading to the gtx780... keep it cooled with the stock fan and not add it to the loop...
cpu is i7-950 4.0ghz...

if i get 2 gtx780 sli will my cpu bottleneck?

Thanks
Dovahkiin
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Dovahkiin
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post #2 of 5
i'm stealing this from a post on the 780 reviews thread:


i know that is a single card but you'll be fine.
loon 3.2
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loon 3.2
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post #3 of 5
Thread Starter 
cool thanks
Dovahkiin
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Dovahkiin
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post #4 of 5
I would say no, the majority of titles are GPU bound anyway these days. Unless you care about benchmarks scores, a faster processor will only make a difference there.
 
X79 Build
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X79 Build
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post #5 of 5
I know it's only anecdotal, but I have found that there is some correlation between the number of GPU's used and the benefits of a faster CPU (and faster system memory). Once you get into SLI with some super-powerful GPU's, you start to greatly increase the amount of data that must be fed to the cards, which is dependent upon the CPU/RAM. The difference isn't huge, but as you can see above in the benchmark results given in a prior post, a faster processor clock results in faster GPU processing. The difference you see in the chart only grows once you add a second, third, or even fourth card.

That said, I think that you will be more than okay. Your processor is one of the few over the years that was a true "future proof" buy (the LGA1366 and 2011 sockets are the "long term" sockets, IMHO), and I would be willing to bet that you have at least one more generation of GPU's left in it before you will really benefit from an upgrade. It's really quite impressive, a processor from '10 is still relevant 3 years later and even has more life left in it. The Core2 Duo/Quad CPU's haven'taged nearly as ggracefully, although they are still a heck of a lot of fun to overclock (especially with water, chilled water, or even better/more extreme methods). The AMD Phenom II processors are also quite old, but they have aged pretty well for a post-A64 AMD CPU; the fact that the X4's and especially the better X6's are still holding their ground against their "successors" is impressive, but AMD just fell asleep behind the wheel and Intel's tick-tock strategy was a bit of a 1-2 TKO. The new "FX" chips do not deserve the name FX, coming from the owner of the original FX, the socket 940 chip that was the first time Intel lost the "extreme high end enthusiast" market in terms of performance with the FX51 @ 2.2Ghz beating the P4 Emergency Edition chips, clocked over fifty percent higher, into a pulp. Sure, it required expensive and uncommon registered memory (I went with the Corsair Twin-X XMS3200RE-1024 kit of DDR-400 2.5-3-3-5 memory, back when Corsair was THE source for the highest quality and performance memory), the limited choice of motherboards which all had an issue with the AGP/PCI buses not being locked causing some people issues when overclocking (Asus' SK8V was my choice), but the integrated dual-channel memory controller was a huge advancement, one that resulted in phenomenal memory performance and low latency even with registered DIMMs, and which would take Intel years to implement into their chips.
It's such a shame, because I see AMD trying so hard to be that same forward thinking, ahead of the curve chip company, but they don't have the cash reserves to finance such "maybe" projects like they did after the success of the Athlon XP, and instead of focusing on simply making a solid chip that performs well enough and undercut Intel pricing, they are still banking everything on unproven and unsuccessful architectures...
   
Z77 Bench-a-lot
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Z77 Bench-a-lot
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i7 3930K @ 4.92Ghz Asus Rampage 4 Extreme EVGA GTX670 FTW 2GB  EVGA GTX780Ti Classified K|ngp|n Edition @ 1483... 
GraphicsRAMHard DriveHard Drive
EVGA GTX780Ti Classified K|ngp|n Edition @ 1483... 16GB G.Skill Ripjaws-Z @ DDR3-2248 9-10-9-26 1T Samsung 830 256GB SSD WD10EZEX 1TB HDD 
Hard DriveHard DriveHard DriveHard Drive
WD10EALX 1TB HDD Seagate Barracuda 7200.14 1TB WD3200AAKS 320GB HDD WD5000HHTZ 10krpm 500GB VelociRaptor 
Optical DriveCoolingCoolingCooling
LG/Hitachi Slim DVD-R/W Custom MB-Backside VRM-sinks (Copper) 3x NZXT RF-FX140LB 1-2krpm 98.3CFM Case Fans 2x Corsair SP120-PE Case Fans 
CoolingCoolingCoolingCooling
Heatkiller GTX680 "Hole Edition" Block + Backplate XSPC Single-Bay Res (Single 5.25 bay) EK Multioption Res X2 - Advanced 150 DD "Fill-Port Res" + Fill-Port Fitting (Red) 
CoolingCoolingCoolingCooling
2x MCP35X + Heatsinks/80x15mm Fan XSPC EX420 Alphacool NeXXos UT60 240 6x Bgears Blasters 140mm 1800rpm Fans 
CoolingCoolingCoolingOS
4x Koolance 120x25mm 2600rpm Fans Comp/Rotary Fittings (BP/XSPC/Monsoon) Primoflex Pro LRT - White (1/2x3/4) Windows 7 Professional 64bit  
MonitorMonitorMonitorMonitor
Dell P2210Hb 21.5" 1920x1080p Viewsonic VA2012WB 20.1" LCD 1680x1050 Dell U3014 Eizo 27" 1440p 10bit RGB-LED Backlit AH-IPS Panel 
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55" LG HDTV (their top 2014 model) Ducky Mechanical (Browns) NZXT HALE90 850W + 8 blown-up AX1200/i's NZXT Switch 810 (White) 
MouseMouse PadAudioAudio
R.A.T.3 + MX510 My Desk GRADO RS1i Headphones Grado PS1000 Headphones 
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Bitfenix Hydra Pro Fan Controller 5ch 30W/ch Bitfenix Alchemy Individually-Sleeved Extension... NZXT Individually-Sleeved Front Panel Wires (Bl... Phobya Sleeved 1x3pin-to-4x3pin Fan Splitter 
OtherOtherOther
Sleeved Wires w Paracord myself (no Heatshrink) Custom Front and Top Panels w HexxMesh *In Prog... Working on Custom Pedestal Prototype 
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