Best Radeon RX 6700 XT VS RX 5700 XT – RDNA 2 So Much Faster?

Radeon RX 6700 XT VS Radeon RX 5700 XT

RX 6700 XT VS RX 5700 XT Today I've got one of the those for science-type videos that you guys seemed to enjoy from time to time. Anyway, just a few days ago, AMD did release the Radeon RX 6760 XT, and while quite an impressive GGPU, it is, after all, delivering RTX 2080 ti light performance. It's not particularly great in terms of value. Still, then that is the theme of 2021 when compared to the previous generation models, so the RX 5700 XT we're looking at around 30 percent more performance on average for a 20 percent increase in price, so again pretty poor value for a generational leap.

That said, in a way, it is still extremely impressive but the value but rather the performance when you consider the fact the RX 5700 XT vs RX 6700 XT feature the exact same core configuration using the same TSMC 7 nanometer manufacturing process, the 30 percent performance uplift is nothing short of amazing. Typically you don't expect to see gains this large when moving to a newer and much more superior manufacturing process like what we saw, for example, with NVIDIA's Pascal architecture which moved to TSMC 16 nanometer process from the 28-nanometer process used by Maxwell.


Rdna 1 VS Rdna 2

The newer manufacturing process enables high clock speeds, which drastically improves performance and efficiency without RDNA 2. However, AMD is managed to achieve a very similar thing while remaining on the same process. So how has AMD a achieved a 30 percent gain on average across our 14 game sample? There are a number of architectural differences between RDNA 1 and RDNA 2.

The RDNA 2 cores featured inside the RX 6700 XT do you have a slight IPC advantage. Still, the geometry performance is worse and discarding primitives as the RX 6700 XT is only configured with half the primitive fixed function units when compared to the RX 5700 XT that's said RDNA 2 does pack two scalar ALU per CU, which is twice that of RDNA 1 and that means complex operations are faster RDNA 2 also supports mash slash primitive shaders, and that means for future title supporting DirectX 12 ultimate the RX 6700 XT should pull further ahead of the RX 5700 XT.

For now, at least through, the key advantage of apart like the 6700 XT has over its predecessor, so the RX 5700 XT appears to be down to the clock speed. On paper, the Radeon RX 5700 XT is set upright, and a boost frequency of 1905 megahertz where the RX 6700 XT boost clock is 2591 megahertz is and that's a rather substantial 35 percent increase. In reality that the difference is more like 42 percent. At least, that's what we observed when comparing the AMD reference models. Still, the RX 6700 XT should be clocking at least 35 percent higher, and we saw on average a 30 percent performance uplift, so it would seem that much of that gain he simply down to the architectural design that allows RDNA 2 clock higher.

So that's exactly what we are going to explode today by clicking the Radeon RX 5700 XT and RX 6700 at the exact same frequency as we suspect most of the performance uplift is simply down to the improved clock speed, and this test will easily prove if that's true or not for testing I'm using an AMD reference cards and both are clocked at 1.8 gigahertz as

I was able to maintain this frequency by maxing out the power target clocked at 1.9 gigahertz the RX 5700 XT frequency did start to fluctuate quite a bit and often drop down to 1.8 gigahertz so I just decided to test there and it was able to maintain that frequency, and more crucially both models were able to maintain a 1.8 gigahertz clock frequency throughout the duration of the test we ran.


Memory RX 6700 XT VS RX 5700 XT

So this is about as apples to apples as you can get in terms of operating frequency. Of course, while testing, the clock speed was constantly monitored to ensure that both GPUs were, in fact, operating at the targeted frequency. As for the memory, I've left that stock as I believe this is the best way to conduct to this testing. You might think that gives the RX 5700 XT an advantage as the memory bandwidth is 17 percent higher thanks to the wider memory bus, but that's actually not the case. If anything, the advantage here is handed to the RX 6700 as it uses its memory much more efficiently with better delta color compression and, more importantly, its infinity cache.

L3 Cache RX 6700 XT VS RX 5700 XT

Essentially RDNA 2 can achieve greater frame rights given bandwidth. The infinity cash plays a key role here. The 96 megabytes on-chip cache functions a lot like an L3 cache on the CPU. This local cache buffers against reading and write to the memory and is much faster than having to work out a Vram helping to boost the memory bandwidth of the RX 6700 XT relative to the RX 5700 XT. So with all of that said, it's now time to test these 2 GPU's clock for the clock. I'll be doing so on our Ryzen 9 5950x test system using 32 gigabytes of DDR4 3200 CL 14 memory. All right, let's get into it.

Watch Dog Legion

Well, right away, this is quite interesting. They're not unexpected in watch dogs legion was saying a very similar performance when matched at the same clock speed basically the average frame rates are identical little three tests the resolutions they're the 1% lower performance for the 6700 XT was consistently better by a 4 to 9 percent margin depending on the resolution.

Assassin's Creed Valhalla

 The assassin's creed Valhalla results are also very close though this time, the RX 5700 XT was slightly faster at all three tested resolutions delivering an extra 2 to 3 FPS. Again both GPUs did maintain a 1.8 gigahertz operating frequency, so the differences here are down to the changes in architectural design. The F1 2020 results were near enough to call identical Israeli, looking it up to a 3 percent variation in the data. The RX 5700 XT was a few percent faster at 1080p and 1440p, while the opposite was true at the 4K resolution.

Tom Clancy Rainbow Siege

The Tom Clancy's Rainbow 6 siege results are a bit more interesting at 1080p. The 6700 XT was around 3 percent lower, which is a negligible margin, but then a 4k, we see the 6700 XT boost performance by 8 percent over the RX 5700 XT. I suspect this improved 4K performance is due to the infinity cache. We also see a similar thing in the shadow of the tomb raider at 1080p. The 6700 XT offers no real advantage over the RX 5700 XT when match clock for the clock; however, at 1440p, the 6700 XT is up to 6 percent faster and then 10 percent faster at 4K. So again, I believe this is down to the superior memory management.

The horizon Zero dawn results in a pretty even across the board. The 6700 XT was a few frames slower you 1080p and much the same 1440p, either a few frames faster 4K. There are several you could certainly claim the data is within the margin of the error despite the three-run average. Testing with Death stranding reveals identical performance between these 2 GPUs when clocked at 1.8 gigahertz, and we're looking at the exact same FPS in all three tested resolutions.

Frame rates in hitman 2 are also very similar, though again, as the resolution increases, the 6700 XT starts to pull ahead, albeit by just 2 to 3 FPS, so in other words, not a lot in it here. Finally, we have the cyberpunk 2077 results, and performance trends are again very similar to what I've seen previously. We're looking at identical numbers at 1080p with the 6700 XT just managing to nudge ahead at the higher resolutions.

Conclusion

So you have it pretty quick and easy benchmark about the one you do like to say it he basically in today's games the majority of the performance uplift something like the Radeon RX 6700 XT enjoys the Rx 5700 XT is down to the increased operating frequency of the cause again it is quite remarkable that AMD was able to make such a large step forward without moving to a new process node we knew this was coming.

However, I have to admit it's still hard to believe AMD was quick to announce its goal with the RDNA 2 architecture of achieving a 50 percent jump in performance per watt over RDNA 1, and that would be accomplished entirely with architectural improvements, not processors improvements a lofty goal but as far as we can tell they've done it with the 6700 XT delivering 30 percent will perform as the 5700 XT while reducing power usage by roughly 15 percent than with the next generation of games we expect the margin between these 2 GPUs to widen further in favor of the RX 6700 XT.

That'll be an interesting situation to monitor over the coming years as it stands there in terms of performance. The RX 6700 he's a seriously impressive step forward from the RX 5700 though unfortunately, it is almost entirely undermined by a 20 percent hike in price. Still, again that's how things are in the current climate, so we cannot just ping the RX 6700 XT for offering a weak value improvement over the previous generation product.

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