[HUB] Radeon RX 6700 XT vs. Radeon RX 5700 XT, Clock-for-Clock IPC Benchmark

1 : Anonymous2021/03/19 10:00 ID: m8dwzh
[HUB] Radeon RX 6700 XT vs. Radeon RX 5700 XT, Clock-for-Clock IPC Benchmark
2 : Anonymous2021/03/19 11:52 ID: grgy6ac

That cache does a good job of making up for a smaller memory bus width.

3 : Anonymous2021/03/19 11:31 ID: grgwfsy

RDNA 1 has two primitive units, rasterizers and 8 RBEs per shader engine while RDNA 2 has 1/1/4. Also RDNA 2 has a smaller wave 32/64 controller per SIMD. This made 80CU possible. IMO RDNA 2 is designed for Navi 21.

4 : Anonymous2021/03/19 11:12 ID: grgv0re

RDNA2 is faster due to the fact the architecture was reworked to allow for much higher clock speeds all while trying to reduce power consumption, if they couldn't have done so they'd have focused on improving IPC instead as the way to improve from one generation to the next. So it stands to reason that for RDNA3, if they don't increase frequencies again, they'll go back to improving IPC, or give us more CUs for the same price/power, improving performance on each tier that way.

ID: grhkapf

if they couldn't have done so they'd have focused on improving IPC instead as the way to improve from one generation to the next.

They claimed a 21% performance per clock enhancement with RDNA2 (making up part of the ~1.5x efficiency gain vs RDNA1)

ID: grj721m

According to computerbase.de perf/clock actually decreased a bit.

ID: grgx9dt

It was called a refresh from the start, aimed at ironing the corners that they didn't had time for RDNA1. These results aren't that surprising tbh.

ID: grhdq6f

Exactly, there's always plenty of low hanging fruit on new architectures.

ID: gri0bv3

It was called a refresh from the start

...no it wasn't? It's clearly not a refresh. You don't get +30% clock speed, ray tracing hardware, L3 cache etc. from a refresh. Who was calling it a refresh?

ID: gri06wp

They're using Intel's tick tock method that worked pretty damn well. I'm glad AMD is no longer a dumb company they used to be. Lisa did an amazing job.

5 : Anonymous2021/03/19 19:28 ID: griiz8z

A RX 5700 XT turned out to be a very good investment if you bought it before the market went boom.

ID: grj51s1

Sapphire nitro+ for £399 2 years ago babee

ID: grksb9n

I had to pay 495€ 1 year ago. :/

ID: grj5iyb

No seriously dude. I bought my 5700xt about three months before the new cards dropped and it has easily been the best PC investment I've made. If I didn't buy it when I did for $400 I'd have to pay the ridiculous price we're seeing now

ID: grnhaw4

I helped my coworker put together a rig and he bought a red devil the week before Christmas, and I was like yeah there are better values on paper but that 5700 XT is a damn good card, had mine for about 18 months now and push it hard, like it should have died hard, lol.

ID: grjgo8c

Got mine in October at around $350. Was kicking myself a bit when I saw the 3070/3080 benchmarks but glad I bought it considering the situation now.

6 : Anonymous2021/03/19 12:01 ID: grgywk0

I didn't see power consumption data for the underclocked 6700 XT. Did I miss it?

ID: grh8ndr

This is what I want to see next... 6700XT at 1800 MHz undervolted as far as possible.

ID: grid62o

I put that in as one of the Q&A session question

7 : Anonymous2021/03/19 12:35 ID: grh1yzo

Impressive how they end up about the same at clock parity, given RDNA2 has some downgrades in the WGPs and the 6700XT in particular has half the rasterizers/prim. units than the 5700XT.

8 : Anonymous2021/03/19 12:49 ID: grh3d45

I'm curious about the power consumption on the underclocked 6700xt. They didn't say it on the video.

9 : Anonymous2021/03/19 10:02 ID: grgqg8p
Timestamps: 05:06​ - Watch Dogs: Legion 05:28​ - Assassin's Creed Valhalla 05:48​ - F1 2020 [DX12] 06:03​ - Tom Clancy's Rainbow Six Siege [Vulkan] 06:24​ - Shadow of the Tomb Raider [DX12] 06:44​ - Horizon Zero Dawn 07:01​ - Death Stranding 07:13​ - Hitman 2 07:25​ - Cyberpunk 2077 07:40​ - Final Thoughts
10 : Anonymous2021/03/19 10:52 ID: grgtm7j

hardware unavailable, nice touch!

11 : Anonymous2021/03/19 10:41 ID: grgswrt


ID: grgtyiy

Current games, clock for clock is nearly the same. Gains come from the huge core frequency increases with the 6700xt. AMD did increase performance per watt big time as well. Steve mentioned the 6700xt provides 30% more performance over the 5700xt while using 15% less power. While also running at a much higher frequency as well.

ID: grhboul


ID: grhk5xw

On the same node and memory technology.

RDNA2 is a objectively a Maxwell moment.

ID: grhiyic

Steve mentioned the 6700xt provides 30% more performance over the 5700xt while using 15% less power. While also running at a much higher frequency as well.

thats actually not what their power consumption chart showed. It eats as much as 2070 Super. How can that be 15% less than 5700XT at 30% higher performance ?

ID: grgt4n1


ID: grgvohw

its the same node but there really is a significant increase in performance and a decrease in power usage

ID: grh9k3w

no ; it performs the same at equal frequency.

The bus-width has been reduced and compensated with cache.

It costs less to produce and performs the same at equal clock, which is great imho.

12 : Anonymous2021/03/19 13:22 ID: grh6psh

with better efficiency, the downclocked mobile version will hopefully be more power efficient

13 : Anonymous2021/03/19 13:36 ID: grh8cf0

so it's the same, but clocked higher

ID: grhlw5v

and with a lower power consumption so not exactly the same

ID: grhm0v8

More power efficient too

14 : Anonymous2021/03/19 17:35 ID: gri3pow

You don't need an ipc improvement when you can clock to moon. Pascal was the same. Smart move by AMD to make effective use of the hardware.

Still think it should be cheaper though.

15 : Anonymous2021/03/19 12:29 ID: grh1csz

Just watch some proper reviews on Youtube. This card is not worth it nor an upgrade from the previous generation in terms of price/performance.

How AMD manages to shoot themselves in the foot every time is beyond me.

ID: grh23y0

AMD intended to launch Radeon RX 5700 XT at $449 and Radeon RX 5700 XT 50th Anniversary Edition at $499, if you remember.

AMD had to cut the prices at the last minute because NVIDIA launched the GeForce RTX 2070 Super.

ID: grh3fr7

Didn't the 5700XT at least reliably beat the 2070 for that price?

The 6700XT can't seem to claim the same feat, despite being more expensive (by $30 or otherwise).

ID: grh3ja5

They set the shit msrp price because they know they can get away with it since all gpu are overpriced. If it's normal condition 6700 xt is doa since 3070 is only 20 more with more feature and superior ray tracing. Worst rdna 2 cards so far in terms of msrp/performance.

ID: grh8sop

Actually it's better than the other 3 in frames per dollar.

ID: grh2yi1

If you can get a MSRP or near MSRP RX 6700 XT, you can sell your RX 5700 XT to miners for a higher price. You can either score a free upgrade OR even make money off it all!

ID: grh2y74

Yeah, and it will still sell in seconds because new gamers need a card.

Right now, gamers who need a graphic card will buy anything. Yesterday in the best 3 shops in both France & Germany, there was literally zero cards at 1060 performance level or more in stock. You could find some 2060/3060/6800XT/3080 on marketplace sites, at 3-4x msrp.

16 : Anonymous2021/03/19 17:10 ID: gri09dy

I don’t think it matters how great a card is if you can’t buy one just IMO

17 : Anonymous2021/03/19 11:08 ID: grgupwf

Well, I guess I have a 6700xt.

Alright, it looks like I have to unironically type /s in this subreddit...

ID: grh31q2

Just clock it to 2.4-2.6 Ghz for the same power and add the missing DX12/Vulkan features while adding 4GB of VRAM and almost doubling the raw and effective bandwidth 😛

And then you have the 6700 XT 😛

ID: grhlctx

And add ray tracing.

ID: grgwha5

If you can make it run at 2.5Ghz on air, sure!

ID: grgwwpx

While same power

ID: grhpdp5

good one, but corporate cucks didn't appreciate the joke

ID: grhs3xx

It's kinda cringe to see people take jokes against a product as personal attacks.


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