Specs: Core i7 3930K (4.4Ghz) EVGA Superclocked GTX 670 4GB TRI SLI Gigabyte Assasin 2 X79 16GB G. Skill Ripjaw @ 2133Mhz 256GB Samsung 830 SSD (OS) 512GB Crucial M4 SSD (Games) 2TB WD Black (Backup) CoolerMaster Pro Gold 1000W CoolerMaster Cosmos 2 Case Corsair H100 w/4 Corsair high static pressure fans in push/pull 3X Asus VG236 120Hz monitors in Surround Logitech G15 Razer DeathAdder Logitech Z-5500 5.1 SteelSeries Siberia V2 (Best headphones on Earth) 3DMARK11 Performance Preset SLI : P16206, 18091 Graphics 3DMARK11 Performance Preset TRI SLI: P19228, 23331 Graphics 18.5% increase Heaven Benchmark (1920x1080, everything maxxed, 8XAA) SLI: 2239, 29.7 Min, 227.2 Max, 88.9 Avg. TRI SLI: 3159, 42.8 Min, 327.3 Max, 125.4 Avg. 41% increase Far Cry 2 Ranch Small Benchmark (Ultra Preset, 8XAA, 6000X1080) SLI: 67.92 Min, 136.65 Max, 92.74 Avg. TRI SLI: 30.10 Min, 156.37 Max, 112.72 Avg. Maximum Memory usage: 2053 mb 21.5% increase in Avg, 14.4% increase in Max, Min decreases by 55% Metro 2033 Frontline Benchmark (Ultra, Physx off, 4xAA, 6000X1080) SLI: 6.08 Min, 284.09 Max, 21.50 Avg. TRI SLI: 5.71 Min, 196.12 Max, 29.5 Avg. Maximum Memory usage: 2700 mb 37% increase in Avg, 31% decrease Max, slight Min. decrease. Mafia 2 Benchmark (Highest settings, Phyx Off, 6000X1080) SLI: 94.6 Avg TRI SLI: 112.2 Avg. Maximum Memory usage: 981mb 18.6% increase in Avg. HAWX Benchmark (Highest settings, 6000X1080) SLI: 155 Avg, 477 Max. TRI SLI: 168 Avg, 384 Max. Maximum Memory usage: 1200 mb 8.38% increase in Avg. 19% decrease in Max. BF3 Single Player Fraps recorded (Ultra, 4xAA, 6000X1080) SLI: 40 Min, 73 Max, 51.5 Avg. TRI SLI: 41 Min, 90 Max, 59.2 Avg. Maximum Memory usage: 2700 mb 14.9% increase in Avg, 23% increase Max, no Min. change. STALKER COP MISERY MOD Fraps recorded (Highest settings, 6000X1080) SLI: 5 Min, 62 Max, 48 Avg. TRI SLI: 5 Min, 105 Max, 65.7 Avg. Maximum Memory usage: 1930 mb 36.8% increae in Avg, 69% increase Max, same Min. Crysis 2 Fraps Recorded (HD Textures, Motion Blur off, 6000X1080, Ultra) SLI: 28 Min, 56 Max, 38 Avg. TRI SLI: 36 Min, 73 Max, 50 Avg. maximum Memory usage: 2650 mb 31.5% increase in Avg, 30% increase Max, 28.5% increase Min. Skyrim Fraps Record (HD Textures Pack, Tweaked .ini, Ultra, 6000X1080) SLI: 36 Min, 123 Max, 62 Avg. TRI SLI: 39 Min, 124 Max, 61 Avg. Maximum Memory usage: 2400mb No real gains or losses. The random losses of Minimum/Maximum fps in games was frustrating to witness, I have no idea what could be causing this, perhaps too much GPU overhead at times ? In general, avg FPS increased. 5 of the 8 games used to bench saw memory usage go past the standard 2048mb limit of the stock GTX 670, even though only 4XAA was used in these titles. A note on each game: (I benched primarily in Surround resolution to try and shift the load to the GPU's, I do not however game primarily in Surround as I am an FPS freak so this is a disclaimer, 'unplayable' for me could be anywhere below 70-80 fps, as my eyes are apparently way too sensitive to fps fluctuation/low fps in games. Grats to you if 30 fps is smooth for your gaming needs, it's not for me!) Crysis 2 was NOT playable in SLI, it was however decently playable in TRI SLI, though I would personally play through it at 1080. STALKER COP MISERY, the results of this test saved me from throwing my 1500$ worth of graphics cards into my neighbor's backyard for the dogs to chew on. I LOVE STALKER, and I am glad to witness first hand the playability factor of this game (and demanding mod) increase to a suitable level with the addition of the third GTX 670. Though it plays excellent in Surround (even for my eyes) the HUD is completely whacked on it in triple monitor so I will not be going that route. Mafia 2 uses all three gpus fully, which was nice to see, at least in the benchmark. Though the increase in fps was less than 20%. BF3: Most people would be charmed to play this game on my PC in Surround, unfortunately it is just choppy enough for it to be unplayable for me personally, however I still consider the modest gains a decent success. Surround just isn't an option unless IQ settings are turned down, which I refuse to do. Skyrim: Huge dissapointment here. The fabled Skyrim CPU bottleneck was supposed to be banished with the addition of two 1080 screens, HD textures, Ultra settings and tweaked .ini settings. However, as far as I can tell, the gpus are still not the dependent piece of hardware for this game, even at 6000X1080. With that being said, this game is completely playable in Surround, though the Menus and HUD are too big. I feel like someone could get away with just one or two GTX 670s to get the same fps I did in this title. A word on memory usage: Like I said, 5 of the eight games I tested exceeded the 2048 mb VRAM limit of the stock GTX 670, however, memory 'used' is not always memory 'required' I have heard argued. You can make your own judgement on that concept. Either way, I am glad to know a memory limitation on my system will be an impossibility for the near future. A word on temperatures: I was worried at first that making a sandwich of three GTX 670s would be an issue, I was even more worried when I realized the EVGA backplates added even more thickness to the cards and gave them barely any room to suck in air through the cooler. I was however quite relieved to see that while noisy, they are only a few degrees higher on avg. Nvidia really did good work on thermals this round. There are some other games people have been asking me to test, I will do my best to get to them, unfortunately I have run into some software side issues with a couple of them (Witcher 2, Crysis) and have not finished downloading Max Payne 3 yet, because it's fricking huge. Overall, there is no doubt this was a massive waste of money. But better me than you !