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x264 quicksync video nvnc

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vce there is no shortage of ways to

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transform your screen into a video stream visible to potentially millions

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of people around the world for the Mad

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Ballers Among Us a second PC dedicated

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to that task is the Undisputed king of

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performance and quality but how do the

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rest of us get our streams going without

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Crossing them up AMD claims to have the

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best solution but do they welcome to a new

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episode of Manufacturers

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say browse privately and securely with

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tunnel bear the simple VPN app try

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tunnel bear for free at the link in the video

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description one of AMD's top marketing points is that the 16 threads in their

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ryzen 7 CPUs allow Gamers to dedicate

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ample CPU resources to both gaming and

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video streaming coding without impacting the performance of either since games

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won't make use of all 16 threads and

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neither will an coder meanwhile one of

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Intel selling points for their consumer level chips is their integrated graphics

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processor and its ability to use

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quicksync video technology to encode a

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video stream without impacting the performance of their

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CPU well that all sounds great but with

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both of them claiming to achieve the same objective by very different means

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well surely one of them's got to be better right well predictably enough AMD

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says that their way software encoding is

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superior and the traditional wisdom

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would back them up on this one the software-based

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x264 encoder is well known to offer

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higher image quality and more flexibility in its setup compared to

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other Solutions but until now if you

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cared about performance you'd almost never use it while gaming because its

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consumption of system resources was pretty much guaranteed to impact your

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gameplay unless you were running an extreme Edition or something like that

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but with more processing cores at ryzen 7's disposal it could be that AMD is on

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to something meanwhile what are the

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other guys doing different here Intel's Quicks sync video and for that matter

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NVIDIA's nvnc and rtgs radon video codec

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engine are all what are known as dedicated hardware-based encoders which

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present an interesting conundrum in theory you actually stand to lose

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virtually no performance which is cool

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but you're forced to use the optimized

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settings that are baked into the hardware meaning that you can't really

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tune anything beyond their presets besides simply increasing the raw bit

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rate to improve quality so finally back

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to the big questions how much does the encoder matter for quality is twitch's

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new maximum of 6 megabits per second enough that it won't really matter

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anymore are any of these Solutions

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really able to untether you from the second PC and let you stream without

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impacting performance well we touched on this from

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AMD's perspective in our ryzen 7 review

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which you can check out here and we asked you guys at that time if you

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wanted something more in depth and since you did ask so nicely your wish is our

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Command we're going to focus on two games for our testing first ashes of the

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singularities CPU Benchmark not because it's a hot game on Twitch right now but

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for technical reasons it stresses the CPU and has a good mix of slow moving

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terrain with lots of small fast-moving projectiles that are great at

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introducing blocky artifact during encoding the second will be the for

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Honor Benchmark with its sweeping cameras and loads of special effects we

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know again most people aren't streaming

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these games but canned benches are much more repeatable across our platforms and

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both of these titles represent a realistic gaming load that is more

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demanding than today's popular Esports titles for our encoders we've used

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common Twitch streaming bit rates and resolutions for all of our comparisons

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you'll note that 1080p30 is technically

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more data to cram into our lower bit rates than 720p60 but the higher frame

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rate of 720p60 should better highlight

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motion artifacts in our encoders so any CPU even one with

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onboard Graphics can use x264 encoding

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but we observed in our testing that not all are created equal in this regard we

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found that AMD's ryzen 7 managed to oh excuse

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me just snuck up on me managed to avoid

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dropping frames throughout our testing at a higher quality preset than either

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of Team Blues Solutions in some cases

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even some of our hardware encoders needed lower presets so to find out how

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these differences in encoding settings affect real world image quality we

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captured a lossless reference recording

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with our Blackmagic intensity Pro and used it for comparison so we can see

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some subtle differences here ryzen manages to retain smaller details that

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get smeared out on team blue at their very fast and super fast settings

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compared to ryzen's faster this not only

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translates into better picture quality overall but also contributes to better

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quality when twitch then re-encodes it

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for its various quality options moving on here we see our Hardware encoders at

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1080 30p at 2500 kilobit per second

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alongside our ryzen x264 footage of the

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four x264 on ryzen appears to be the least likely to lose small projectiles

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in ashes of The Benchmark nvnc and

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quicksync don't seem half bad here to be clear but they do block up more often

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and lose finer details when A lot's going on at once rtgs AMF encoder on the

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other hand sorry radon fans but

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uh things get more interesting again at

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720p60 x264 holds up best once more although

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the shimmering of compression artifacts on the cobblestones as the camera flies

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by is pretty noticeable but not nearly as noticeable as it is with the rest of

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our contest nvnc is again at the head of the

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hardware pack looking decent but our

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quick sync and AMF footage are both abysmal at times blocking up so badly as

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to appear as though they'd been recorded at 240p instead of

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720p we'll keep our visual comparisons rolling while we move on to Performance

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with x264 we see a respectable showing

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from our ryzen 7 1800x at averaging

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about a 5 to 10% performance penalty on

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the faster and very fast presets over

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our Baseline reading on the 6900k

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meanwhile we get an average of a roughly 3 to

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23% Performance drop clearly a much more

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varied result while our 7700k could get

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as high as a 36% hit both of these ones on the super

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fast preset AMD high-speed Infinity

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fabric interconnect secret sauce for ryzen's video encoding while gaming

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performance looks like it's working so

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far our Hardware tests meanwhile show

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ryzen actually taking a wider hit with nvenc at roughly 5 to 15% on average

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while our 6900k managed a 3 to 10%

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variance and our 7700k ranged from 2 to

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18% rg's AMF encoder seemed to hit all

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of our chips less with ryzen taking a

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roughly 7 to 8% performance hit and sitting in between the other two though

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as we've seen the AMF encoder is also far from the highest quality for

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streaming but we have one final encoder

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one that we can't directly compare with any other CPU and that's Intel's

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quicksync video compared to the 7700k

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Baseline it caused a 3 to 12% performance drop about in line with the

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rest of our Hardware encoders so finally then lining all our encoders up next to

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each other we can see that actually

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ryzen running x264 blows the doors off every other CPU

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encoder combination it has a tight

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variation in its performance impact over our Baseline numbers and it has a higher

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quality CPU preset meaning that when twitch re-encodes you lose less detail

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overall so taken together it looks like

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AMD's marketing department wasn't asleep

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you liked it and get subscribed and maybe check out where to buy the stuff

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we featured at the link in the video description also down there is our merch

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store as well as our community Forum which you should totally join