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Posted by Popo
 - March 15, 2021, 00:42:33
Quote from: Derek on March 14, 2021, 10:08:25
Why would anyone pair such a nice gpu with a Garbo cpu ?

Piecewise upgrades? Playing GPU-bound games? Occasional gamers but needing GpU accelerated abilities? Received one as a gift? Lots of valid reasons. I would not call those CPUs garbo though, they are quite capable still.
Posted by Derek
 - March 14, 2021, 10:08:25
Why would anyone pair such a nice gpu with a Garbo cpu ?
Posted by Jay arsenal
 - March 14, 2021, 00:52:22
I can confirm this. On a 1800x I upgraded from a 1660 super to a 3069 (non ti) and horizon zero dawn and star citizen each became completely unplayable at any setting or resolution. The only solution was to either go back to the 1660 or upgrade the cpu
Posted by Steelcity1981
 - March 13, 2021, 23:00:55
Hardware unbox isn't  a reliable source and this just proves it once again. They use 2 games to conclude their findings.
Posted by Wereweeb
 - March 13, 2021, 14:56:17
It's quite telling that everyone here who commented disagreeing clearly hasn't watched the video and doesn't know how Hardware Unboxed operates.
Posted by meh
 - March 13, 2021, 08:50:52
Quote from: Graham R Radetsky on March 13, 2021, 01:01:01
I call bullcrap. 1. Use more than one or 2 games. 2. Make sure your drivers, memory settings and temps are tuned and appropriately up to par. I have an amd 3600x and upgraded from 5700xt to rtx 3080 not a single game even on 1080 low is runing slower than the 5700xt. This is their computer or one poorly optimized game scenario. I can confirm it is not even close to accurate. On avg at 1080p low rtx 3080 is 40-70% faster than 5700xt consistently across high cpu demanding scenarips and 90-120% faster on gpu demanding ones like 4k gaming.

Have you even watched the video? Zen 2 (3000) and above scales normally.. smh
Posted by SirStephenH
 - March 13, 2021, 02:39:51
A lack of full testing makes these results pretty much worthless.

Also, who the hell uses an i3 for gaming? You should have at least an i5 for any level of gaming and anyone using high-end cards such as these would be using an i7 or i9 anyways.
Posted by Graham R Radetsky
 - March 13, 2021, 01:01:01
I call bullcrap. 1. Use more than one or 2 games. 2. Make sure your drivers, memory settings and temps are tuned and appropriately up to par. I have an amd 3600x and upgraded from 5700xt to rtx 3080 not a single game even on 1080 low is runing slower than the 5700xt. This is their computer or one poorly optimized game scenario. I can confirm it is not even close to accurate. On avg at 1080p low rtx 3080 is 40-70% faster than 5700xt consistently across high cpu demanding scenarips and 90-120% faster on gpu demanding ones like 4k gaming.
Posted by RRTeam
 - March 12, 2021, 23:41:01
It's a good video and nice test, but pretty much irrelevant. People that buy the new cards (especially considering the price madness) won't team them up with an R5 1600 or i3 anyway. I doubt there's even 1 machine in the real world that has an 3080, not to mention 3090, that runs together with an i3 whatever generation. This test seems relevant to me like a race between a car and a fighter jet.
Posted by Targonis
 - March 12, 2021, 23:15:08
A potential reason for this is that the NVIDIA GPUs are not using hardware acceleration for many DirectX 12 functions, so the drivers are compensating for these limitations.    With a fast CPU, this may have been missed, but when CPU limited, you see that the DRIVERS are doing more than they should be
Posted by Tiamat
 - March 12, 2021, 21:59:25
Duh it was nerfed coz their made for gaming and they was getting bought up by crypo miners. How about you wait and compare it to ones that hasn't been nerfed?
Posted by hfm
 - March 12, 2021, 18:15:13
It also only matters if you are turning details down, which you probably wouldn't do if you had one of these better performing GPUs. They do admit to that in the conclusion IIRC as I watched it yesterday.

In Reality: If you are a super competitive gamer, STILL running on an old CPU and you run your game in potato mode to be competitive, maybe consider hunting down Radeon (if you can even find a 5700XT or above anymore). If you are using your 5700XT/2070 or above fully in these games at 1080p with high/ultra details or 1440p high details or even 4K depending on which tier your are in, this doesn't matter at all.

I love the research from an academic standpoint, love to hear the root cause whether it be the rendering pipeline or whatever, the slice of the population this will actually affect is very niche.
Posted by Rick
 - March 12, 2021, 17:40:10
Quote from: FlowGo on March 12, 2021, 15:37:25
Is Nvidia using CPU-bound driver optimizations or CPU-assisted rendering techniques like tiling? That may create this issue.

Didn't Nvidia start using some sort of partially tiled rendering pipeline since Pascal? Isn't that why Nvidia's raster operations are more energy efficient? I guess.
Posted by FlowGo
 - March 12, 2021, 15:37:25
Is Nvidia using CPU-bound driver optimizations or CPU-assisted rendering techniques like tiling? That may create this issue.
Posted by Redaktion
 - March 12, 2021, 13:39:52
High-end NVIDIA Turing and Ampere GPUs are not friends with older CPUs, according to new findings. Apparently, the likes of the RTX 3070 and RTX 3090 struggle so much when bottlenecked by a CPU that they performance worse than AMD RDNA 1 cards, such as the Radeon RX 5700 XT.

https://www.notebookcheck.net/NVIDIA-GeForce-GPUs-appear-to-be-performing-up-to-30-worse-than-AMD-Radeon-GPUs-when-bottlenecked-by-older-CPUs.527436.0.html