AMD Radeon RX 6800 and RX 6800 XT Review

Introduction and Technical Specifications

AMD Radeon RX 6800 and RX 6800 XT Preview

Introduction

AMD have, to borrow a bit of sporting parlance, solved CPUs. The Ryzen range came out of the doors as excellent and the next versions only refined and enhanced them until we reach a stage with the Ryzen 5000 series where they are a match for anything the opposition can bring to the table.

We don't think we'd be giving away any secrets to say that their Radeon range of GPUs has been left somewhat in the shadow of its challenger though, particularly as so much of the AMD R&D department has been laser focussed upon getting their Processors to their class-leading position. Both of the major consoles now have AMD chips beating at their heart - the PS5 and Series X - so we know that AMD has got a lot of aces up their sleeve in the graphics world too. With the RDNA 2 architecture, we have a few new graphics cards coming under the Radeon umbrella, and the first of these to cross the OC3D office is the RX 6800 and RX 6800 XT.

Both cards have a significant redesign when compared to even the Radeon VII, and with Ray Accelerators built on to the card, they have the potential to be everything we'd expect from a current GPU. It makes perfect sense for AMD to have focused upon a way of extracting the most performance on the software side of things, as the new consoles will have their hardware locked down for the foreseeable future and so any extra performance is going to be driver based. That's perfect for those of us on PC as updating our drivers is so engrained in our culture that we get antsy if a month goes by without a new release.

Specifications first, then pictures, then some feature slides, and finally we can reveal how it actually performs.

Technical Specifications

Note that AMD has included their own Ray Tracing hardware. It's more of a solution in keeping with the Nvidia Turing cards, where some processing happens on card and some in the drivers, rather than the Ampere sledgehammer approach, but given how much Ray Tracing is also a feature on the AMD equipped Playstation 5 and XBOX Series X we expect that the software side of things will really get the job done. Unless you believe that Microsoft and Sony will advertise a feature that doesn't work as well as demonstrated? Either way, the RX 6800 is a serious step up on the Radeon cards that have come before. We'll delve into the nitty-gritty of what's new on the third page. Patience young padawan.

 Radeon RX 6800 XTRadeon RX 6800
ArchitectureRDNA 2RDNA 2
Manufacturing Process7nm7nm
Transistor Count26.8 Billion26.8 Billion
Compute Units7260
Ray Accelerators7260
Stream Processors46083840
Game ClockUp to 2015 MHzUp to 1815 MHz
Boost ClockUp to 2250 MHzUp to 2105 MHz
Single Precision PerformanceUp to 20.74 TFLOPSUp to 16.17 TFLOPS
Half Precision PerformanceUp to 41.47 TFLOPSUp to 32.33 TFLOPS
Texture Fill RateUp to 648 GT/sUp to 505.2 GT/s
ROPs12896
Peak Pixel Fill RateUp to 288 GP/sUp to 202.1 GP/s
Infinity Cache128 MB128 MB
Memory16GB GDDR616GB GDDR6
Memory Bandwidth512 GB/s512 GB/s
Memory Interface256-bit256-bit
Board Power300W250W

Now to see them in the flesh..

«Prev 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Next»

Most Recent Comments

18-11-2020, 09:15:01

g0ggles1994
I am wet.
Time to retire the VegaQuote

18-11-2020, 09:25:35

Warchild
Welcome back to the world of competition AMD. Seriously well done on this product. Feels good to see them fighting back hard.

Look foward to the 6900/XTQuote

18-11-2020, 11:43:22

jcchg
Good performance. Mediocre Raytracing for now. Great power consumption. Negligible overclocking gains.

600 € and 670 € here in Spain respectively (out of stock). Next year we'll have enough stock I guess.Quote

18-11-2020, 11:51:56

KingNosser
About what i expected tbh so not disapointed, but with regards to stock come next year it'll be what i can get my hands on cause atm it's a right mess.Quote

18-11-2020, 13:01:25

AngryGoldfish
Wowzers, that's very, very good. Both the 6800 and 6800XT are 1440p kings for sure. Congratulations, RTG! And the 4k performance is still highly competitive.

Thanks so much for the thorough review, as always.

I noticed TPU had much lower power consumption numbers. I know everyone tests differently with different systems, so I'm not comparing them. I just want to add to how competitive AMD is. Looking at TPU's numbers, the 6800 draws less power than the 5700XT in gaming... and obviously way less than the 3080 and even the 3070. That's an incredible feat for the same 7nm process!

And the temperatures are definitely there as well. The cooler seems to be performing admirably. It's the first time in donkey's years where you could buy the AMD reference design and not feel like you're compromising on anything.

Ray-tracing is certainly behind Nvidia; they have a strong lead on AMD it seems. I wouldn't consider that a deal-breaker, but the 3070 and 3080 offer better value for money if you care a lot about RT. Add DLSS to that and Nvidia aren't in trouble of losing too many sales I don't think.

Quote:
Originally Posted by jcchg View Post
Good performance. Mediocre Raytracing for now. Great power consumption. Negligible overclocking gains.

600 € and 670 € here in Spain respectively (out of stock). Next year we'll have enough stock I guess.
Seeing as I saw early UK listings at over £700, that's excellent pricing for Spain.Quote
Reply
x

Register for the OC3D Newsletter

Subscribing to the OC3D newsletter will keep you up-to-date on the latest technology reviews, competitions and goings-on at Overclock3D. We won't share your email address with ANYONE, and we will only email you with updates on site news, reviews, and competitions and you can unsubscribe easily at any time.

Simply enter your name and email address into the box below and be sure to click on the links in the confirmation emails that will arrive in your e-mail shortly after to complete the registration.

If you run into any problems, just drop us a message on the forums.