Question PC development

[kisserik93]

Hello!

Since my new monitor became an LG OLED C2 42" TV, I was forced to buy a new video card.

My current config:

Processor: Intel Core i7-10700K
Motherboard: MSI MAG Z490 TOMAHAWK (MS-7C80)
Memory: 16 GB DDR4
Video card: I am replacing an RTX2080 with this: ASUS TUF Gaming Radeon™ RX 7900 XTX OC Edition 24GB
Power supply: Seasonic Prime Ultra 650 W

Question: What I have managed to find out so far is that the power supply will be small. How can I calculate the size of the power supply unit I will need?
Question: What is better to do? Replace the processor, memory, motherboard as well or just buy + 16 GB of memory?
How much can a new generation processor throw on average in a 4K game at ULTRA settings?

Thanks!

 

[MrN1ce9uy]

At 4K gaming the CPU makes less difference. I would keep your current CPU/Mobo and replace the 16GB kit with a 32GB kit. You can gamble on whether adding the same spec memory kit will run well with your currently memory kit, but it's not always the case and you may run into issues.

Your specific GPU will have the PSU requirement listed in its specifications. Looks to be 850W. Make sure you get a good quality unit. Where are you buying from and maybe we can make some recommendations?

 

[Lafong]

Review says 400 watts gaming power consumption, spiking higher.

ASUS Radeon RX 7900 XTX TUF OC Review - Amazing Overclocking

The ASUS Radeon RX 7900 XTX offers fantastic overclocking potential. Thanks to a triple 8-pin power input, the XTX is no longer power-limited, and the amazing quad-slot cooler ensures the card stays cool and quiet at all times. After manual overclocking, the performance uplift to RTX 4080 was an...

www.techpowerup.com

 

[JohnBonhamsGhost]

Question: What is better to do? Replace the processor, memory, motherboard as well or just buy + 16 GB of memory?

you will definitely be able to produce more fps with a better CPU and 32GB of faster DDR5 RAM.

How much can a new generation processor throw on average in a 4K game at ULTRA settings?

that is too generic of a question.
it highly depends on the specific game in question, what technologies the game is using, etc.

the CPU is what processes the data and produces the average frames per second
but the GPU is what renders the data and provides the quality per frame.

the fastest available CPUs along with the most powerful GPUs these days will usually be able to provide >100fps with the latest graphics tech options @ 2160p.

 

[MrN1ce9uy]

you will definitely be able to produce more fps with a better CPU and 32GB of faster DDR5 RAM.

that is too generic of a question.
it highly depends on the specific game in question, what technologies the game is using, etc.

the CPU is what processes the data and produces the average frames per second
but the GPU is what renders the data and provides the quality per frame.

the fastest available CPUs along with the most powerful GPUs these days will usually be able to provide >100fps with the latest graphics tech options @ 2160p.

While you may be somewhat correct about 1080p performance, at 4K [2160p] you will see very little if any gain from a faster CPU.

 

[JohnBonhamsGhost]

While you may be somewhat correct

none of these graph images you provide show what GPU is in use.
doesn't matter how many frames the CPU provides if the GPU can't properly render them.

and these provided graphs are just some crap from YouTube it seems.
anything you want to find there will be available just for views. you can also find performance videos showing the exact opposite there.

 

[MrN1ce9uy]

none of these graph images you provide show what GPU is in use.
doesn't matter how many frames the CPU provides if the GPU can't properly render them.

and these provided graphs are just some crap from YouTube it seems.
anything you want to find there will be available just for views. you can also find performance videos showing the exact opposite there.

It's with an RTX 4090 and it is common knowledge that CPU performance difference diminishes at 4K resolution. Most reviewers leave CPU performance comparison off the charts at 4K because there is little to no difference.

You may find a game or two that shows a performance difference. But for the most part, there is little difference in CPU performance unless you go way back to a much older CPU that has either considerably less cores and/or considerably lower instruction per cycle.

The Intel Core i9-13900KS Review: Taking Intel's Raptor Lake to 6 GHz

www.anandtech.com

 

[hotaru.hino]

you can also find performance videos showing the exact opposite there.

That the CPU actually matters at 4K resolution?

Please, show these videos.

 

[Zerk2012]

Hello!

Since my new monitor became an LG OLED C2 42" TV, I was forced to buy a new video card.

My current config:

Processor: Intel Core i7-10700K
Motherboard: MSI MAG Z490 TOMAHAWK (MS-7C80)
Memory: 16 GB DDR4
Video card: I am replacing an RTX2080 with this: ASUS TUF Gaming Radeon™ RX 7900 XTX OC Edition 24GB
Power supply: Seasonic Prime Ultra 650 W

Question: What I have managed to find out so far is that the power supply will be small. How can I calculate the size of the power supply unit I will need?
Question: What is better to do? Replace the processor, memory, motherboard as well or just buy + 16 GB of memory?
How much can a new generation processor throw on average in a 4K game at ULTRA settings?

Thanks!

I would buy a 2X16GB set of memory and sell your 16GB set.
For the power supply I would go ahead and look at some 1000 watt ones. Make sure it has at least 3 separate 6+2 pin cables not dependent on the pigtail ones.