AMD Radeon RX 5700 and RX 5700 XT Review

Technology

AMD Radeon 5700 and 5700 XT Review

Technology

Any new processor, be it of the central or graphics variety, comes with a set of brand identifiers for the underlying technologies and the Radeon RX 5700 range is no exception. The 7nm process, as well as coming with the Navi codename, is based upon the RDNA architecture. Radeon DNA. This means compatibility with the current GCN instructions and yet optimised for ease of programmability and energy efficiency, with reworked Compute Units and SIMD - Single Machine, Multiple Data - for even faster processing and improved single-thread performance. Single thread performance is something we've also seen improved on the 3rd Generation Ryzen CPUs, so it's clearly something the AMD gurus have been working hard to improve. Additionally the Navi GPU can take advantage of PCI Express 4.0 with twice the bandwidth of the current PCI Express 3.0 setup.

AMD Radeon 5700 and 5700 XT Review

We won't pretend that we understand the full ins and outs of the GPU layout, or how the redesign can aid performance beyond the obvious idea that the shorter the distance between each element the lower the latency and therefore the faster the performance can be. We are enthusiasts and journalists, not people with doctorates in silicon design. We are much like you, dear reader, in that "this is all very well but how fast can it run my games and how gorgeous do they look?". If you're desperate for a more technical explanation of how this all works then AMD have all the bumf and you're free to fill your boots. Maybe the fact that the RDNA architecture can group 64 threads as 2 Wave32 which are then executed by 2 SIMD32 for higher ALU utilisation means something to you. Us? We'll focus upon the bits that are more transparent to the end user.

AMD Radeon 5700 and 5700 XT Review


AMD Radeon 5700 and 5700 XT Review 

Speaking of transparency, this is something we can get behind. 25% improvement in performance per clock when compared to the preceding GCN Radeon design. You don't require a PhD to understand that faster equals better in nearly all aspects of life. We spoke in our introduction about how the lessons learned in the design of the Ryzen processors have quickly taken root in the AMD DNA and it's clear that they not only understand how to make their processors useful, but how those improvements can be used to increase the effectiveness of their graphics cards.


AMD Radeon 5700 and 5700 XT Review  

We have to take a moment to appreciate the honesty of AMD too. Some manufacturers either cherry pick what information they give you so that their product always appears better than the competition, or do anything they can so as to not belittle anything they have previously produced. AMD are very up front about the areas in which they have had past failures, as well as the areas in which they equal rather than best the competition. Openness and truthfulness go a long way with us, particularly in these dark global times.


AMD Radeon 5700 and 5700 XT Review 
Whilst 1080 and to some extent 1440 gaming is very much a massive segment of the market, and the target the RX 5700 and RX 5700 XT aim to hit, AMD are aware that 4K gaming is a serious option, particularly with the rapid evolution in the display panel industry meaning that 4K screens are somewhat affordable. The Navi comes with AMD Radeon Image Sharpening, or RIS, which lets you render at 1440 and upscale to 4K, bringing the 1440 performance to 4K panels by by implementing an intelligent sharpening algorithm to negate any blurring that usually occurs during upscaling. If you've brought yourself a 4K screen but haven't necessarily got the hardware power to run 4K60 then it's a good compromise between the easier overheads of lower resolution and the crispness you can only get at native resolutions.

AMD Radeon 5700 and 5700 XT RIS  
AMD Radeon 5700 and 5700 XT RIS Performance  

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Most Recent Comments

07-07-2019, 09:15:01

AlienALX
Hot potato !!

Not as bad as I thought it would be though, and at least they put a nice looking cooler on it, rather than the sat on squashed looking one.

Thanks guys, your time is appreciated Quote

07-07-2019, 11:10:37

AngryGoldfish
Not bad, AMD, not bad. Navi looks decent and Zen 2 looks very good indeed. If AIB partners and retailers don't overcharge, a 5700 or XT could be on the horizon.

I don't think I'll bother with anything other than a 3700X. And X570 boards don't seem to offer much considering the huge price increase. Not sure what to do there. Maybe I'll even keep my X370 board. I don't know. It doesn't have enough m.2 slots and I hate the BIOS and memory support, but that could be improved with Zen 2.Quote

07-07-2019, 12:08:44

kardeon
Are you sure about your results in BF5 ?
Guru3d, techpower 3d and so on have totaly differents results.Quote

08-07-2019, 04:59:18

Giggyolly
I'm thoroughly impressed by Navi, they do exactly what they need to, and sit at good price points. I do however think the power consumption is a bit higher than what we were hoping.
Its a bit of a weird time being a Vega 64 owner, 2 cards released and no worth-wile upgrade as of yet. Bring on big Navi I guess!Quote

08-07-2019, 05:23:11

WYP
Quote:
Originally Posted by kardeon View Post
Are you sure about your results in BF5 ?
Guru3d, techpower 3d and so on have totaly differents results.
I'll make sure Tom looks into this. The results do look strange.Quote
Reply
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