1 00:00:00,480 --> 00:00:06,640 There are tons of different ways you can grade a power supply. Rail setup, 2 00:00:04,319 --> 00:00:12,000 overall wattage, efficiency, quality, components, etc. Today, we'll be doing 3 00:00:09,360 --> 00:00:17,039 it this as a thought experiment on the overabundance of wattage, and will it 4 00:00:14,639 --> 00:00:21,039 help you overclock, and if so, by how much? Stay subscribed to Linus Tech Tips 5 00:00:18,960 --> 00:00:26,920 to see a future episode on how to do cable lacing, which will make your PC 6 00:00:23,359 --> 00:00:26,920 look pretty amazing. 7 00:00:33,600 --> 00:00:39,680 The Cooler Master Novatouch TL utilizes genuine Toper hybrid capacitive switches 8 00:00:38,160 --> 00:00:44,239 and is now available at a more affordable price. Click now to learn 9 00:00:41,600 --> 00:00:47,840 more. To perform said thought experiment, we will be using IDA 64's 10 00:00:46,160 --> 00:00:52,399 stress test functionality to push the CPU and Firmark to push the GPU. These 11 00:00:50,719 --> 00:00:56,239 programs should ensure that we have quite a bit of power generation from the 12 00:00:54,399 --> 00:01:00,800 various parts on our test bench. We use these programs to push our components as 13 00:00:58,079 --> 00:01:05,920 much as we can using each power supply in order to try to find that power 14 00:01:02,960 --> 00:01:10,560 supplies limit in a sense and to see if having more wattage will directly result 15 00:01:08,080 --> 00:01:14,400 in higher overclocks or if the spacing between power supplies is high enough 16 00:01:12,400 --> 00:01:18,320 that getting a power supply that can support your system will also just 17 00:01:16,320 --> 00:01:23,280 naturally support an overclock. For the test bench itself, we have an ASUS X99 18 00:01:20,560 --> 00:01:30,720 Deluxe with a 5960X sitting comfortably in its socket. The 5960X will run in a 19 00:01:26,080 --> 00:01:34,000 range of 3, 3.1, 4, 4.1 GHz, and stock 20 00:01:30,720 --> 00:01:36,479 at stock voltages, and then 4.5 GHz at 21 00:01:34,000 --> 00:01:43,119 1.35 volts. For graphics cards, I will be using an HD770, 22 00:01:38,479 --> 00:01:45,840 an R7265, an R927X, a GTX 770, a GTX 23 00:01:43,119 --> 00:01:50,720 Titan X, and dual GTX Titan X's. These cards will be running at varying stock 24 00:01:47,600 --> 00:01:52,159 speeds and varying overclock speeds. And 25 00:01:50,720 --> 00:01:55,600 we'll be discussing how each power supply performed with them, but you can 26 00:01:53,920 --> 00:01:58,640 see their overclock speeds in the dock down below just in case. They're maxed 27 00:01:57,119 --> 00:02:03,360 overclock speeds. We're going to start off with a really low wattage power 28 00:02:00,399 --> 00:02:08,080 supply. A 300 W SFX power supply from Silverstone. As far as I'm concerned, 29 00:02:05,680 --> 00:02:12,400 this is the little power supply that could. The first setup we tried on it 30 00:02:10,080 --> 00:02:18,080 was maxing out our HD 7770 and our 5960X, which it was somehow able to do. 31 00:02:16,239 --> 00:02:23,599 Seriously, this thing is rated at 300 watts, but was somehow comfortably 32 00:02:20,080 --> 00:02:27,200 pulling 375 watts from the wall. It even 33 00:02:23,599 --> 00:02:28,879 took an R7265 in stride, maxing it out, 34 00:02:27,200 --> 00:02:34,480 but starting to fail when we clocked the CPU above 4 GHz. With the GPU maxed out 35 00:02:32,080 --> 00:02:39,280 and the CPU at 4 GHz, it was pulling about 360 W from the wall again 36 00:02:37,120 --> 00:02:43,920 comfortably. With the 270X, it was able to hit 1245 core clock, which isn't 37 00:02:41,680 --> 00:02:49,040 quite our max overclock, but it did do this while pulling 320 watts from the 38 00:02:45,920 --> 00:02:50,720 wall as well for the card. When we when 39 00:02:49,040 --> 00:02:55,440 we tried to increase clock speeds on the CPU above stock, the kind of crashed, 40 00:02:54,000 --> 00:03:00,239 which was kind of unfortunate, which ends the epic run of this power supply 41 00:02:57,840 --> 00:03:03,760 as it didn't manage to boot a 770 or Titan, which is fine. Next up, we have 42 00:03:02,159 --> 00:03:09,920 the bigger, older brother to our previous legendary SFX power supply, the 43 00:03:06,319 --> 00:03:12,480 Silverstone 450 watt SFX 80 Plus Gold. 44 00:03:09,920 --> 00:03:17,280 Fine up till 270X, which it did manage to boot with and was able to get a max 45 00:03:15,120 --> 00:03:21,360 overclock from the 270X, but I was unable to get anything stable from the 46 00:03:19,200 --> 00:03:27,280 CPU other than just stock. Just for fun, we have 450 W power supply from my 47 00:03:24,800 --> 00:03:32,799 Scrapyard Wars machine. Uh, with the HD770, we were able to max out the GPU 48 00:03:30,000 --> 00:03:37,920 and overclock the CPU to 3.1 GHz without any crashes. This resulted in a pull of 49 00:03:35,120 --> 00:03:41,760 295 watts from the wall. Also, something to note is that this power supply 50 00:03:39,599 --> 00:03:46,239 started to stink quite badly when we pushed it. Concerning at the least, but 51 00:03:44,400 --> 00:03:51,360 as the band Suicide Silence, or even Drake would like to say, yolo. I was 52 00:03:48,879 --> 00:03:58,000 able to max out the R seven265 and yet again was only able to get the CPU to 53 00:03:53,680 --> 00:03:59,840 3.1 GHz which totaled a total of 320 54 00:03:58,000 --> 00:04:03,280 watts from the wall. This is where things went downhill for the poor little 55 00:04:01,680 --> 00:04:07,360 power supply. However, it refused to boot with the 270X installed and 56 00:04:05,200 --> 00:04:11,120 actually never booted again on any setup, including ones that I had 57 00:04:09,200 --> 00:04:17,040 previously tested verified working after that. RIP, you crappy little power 58 00:04:13,760 --> 00:04:20,320 supply. RIP. Jumping up 100 watts, we 59 00:04:17,040 --> 00:04:22,320 have the B Quiet 550 watt 80 plus gold 60 00:04:20,320 --> 00:04:26,800 power supply. This guy was able to max out everything until the Titan X setups, 61 00:04:25,040 --> 00:04:30,800 which it was able to do quite well, actually. It was able to support a 62 00:04:28,479 --> 00:04:37,360 maximum overclock on the Titan X, but only 3.1 GHz on the CPU while pulling a 63 00:04:34,560 --> 00:04:42,880 total of 560 watts from the wall. Another 100 watts more brings us to the 64 00:04:39,520 --> 00:04:44,720 650 W Cooler Master power supply. This 65 00:04:42,880 --> 00:04:49,840 guy was totally happy to run everything maxed out and up to and including a 66 00:04:47,440 --> 00:04:56,320 single GTX Titan X, which it did while pulling 580 W from the wall. It was able 67 00:04:52,720 --> 00:04:59,680 to boot a stock GPU settings dual Titan 68 00:04:56,320 --> 00:05:01,680 X setup and it was kind of fine until we 69 00:04:59,680 --> 00:05:07,120 put it under load where it unfortunately but expectedly crashed after a minute or 70 00:05:04,560 --> 00:05:12,639 two while pulling 680 watts from the wall for a few minutes. The Corsair AX 71 00:05:10,000 --> 00:05:16,000 850 W power supply is up next with an additional 200 watts of power. This 72 00:05:14,560 --> 00:05:19,759 power supply is able to crank every setup to the max, but just barely 73 00:05:18,160 --> 00:05:25,039 throttle back on the max settings for dual Titan setup, resulting in a pretty 74 00:05:22,639 --> 00:05:29,520 solid clock, but not as high as I might have hoped. At a little itty bittsy step 75 00:05:27,759 --> 00:05:33,840 up, we have the Anttech High Current Gamer 900 watt power supply, which was 76 00:05:32,000 --> 00:05:39,199 able to run everything at full without much trouble, but hit 875 watts from the 77 00:05:36,880 --> 00:05:44,560 wall while running dual Titan X's fully overclocked and while running the 5960X 78 00:05:41,759 --> 00:05:48,639 fully overclocked as well. Cutting it a little close on that one, but being okay 79 00:05:46,880 --> 00:05:54,000 overall. Last but not least, we have our ludicrous level power supply, the 1200 80 00:05:51,280 --> 00:05:58,960 watt Corsair AX1200i 80 plus platinum, which as you probably 81 00:05:56,639 --> 00:06:03,680 guessed it, ran everything totally fine. And as everything was already maxed out, 82 00:06:01,600 --> 00:06:08,560 it didn't have any overclocking benefits to give. Now, that was a lot of testing, 83 00:06:06,639 --> 00:06:12,160 and in conclusion, we have, I think, a fairly expected answer. More wattage 84 00:06:10,479 --> 00:06:16,880 will help you get a higher overclock if your system is throttling or crashing 85 00:06:13,840 --> 00:06:19,360 due to a lack of wattage. But a massive 86 00:06:16,880 --> 00:06:24,400 overabundance of wattage won't actually have an effect on what potential clock 87 00:06:21,360 --> 00:06:26,240 speeds you're able to obtain if you're 88 00:06:24,400 --> 00:06:31,039 already hitting your maximum overclocks. Anyways, is this any more to this 89 00:06:29,120 --> 00:06:34,639 discussion of what power supply to buy? Definitely. Efficiency is a big one. And 90 00:06:33,120 --> 00:06:38,800 while this video was interesting, running your power supply at full tilt 91 00:06:36,479 --> 00:06:44,080 all the time is probably not the best idea ever. But that will have to wait 92 00:06:41,280 --> 00:06:48,080 for another time. Speaking of settings, I'm excited to announce a very special 93 00:06:45,919 --> 00:06:54,000 drop on Massdrop today. They're featuring the Vortex Poker 3, a keyboard 94 00:06:50,800 --> 00:06:56,240 that I think is absolutely gorgeous. It 95 00:06:54,000 --> 00:07:00,319 still has the Cherry MX switches and PBT key caps that we saw on the previous 96 00:06:58,080 --> 00:07:04,400 Poker 2, but Vortex has stepped their game up pretty significantly on the 97 00:07:01,759 --> 00:07:08,560 Poker 3 by utilizing a much higher quality metal case and including more 98 00:07:06,639 --> 00:07:13,199 programming capabilities than we saw on the Poker 2. The drop has already 99 00:07:10,639 --> 00:07:17,199 unlocked its lowest price possible on Massdrop because of how ridiculously 100 00:07:15,039 --> 00:07:22,160 awesome it is in my opinion and is currently available for $15, 101 00:07:20,319 --> 00:07:29,120 a pretty significant discount off of the MSRP. 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