What limits AMD from creating a destop APU similar in say "1080p" performance to that of the PS5?
- Thread starter keenan
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Biggest problem for performance of GPUs integrated into CPU is memory bandwidth.
While for CPU low latency is higher priority, for GPU it's massive bandwidth because of massive number of parallel operations.
GPU would basically need some HBM in CPU package as faster cache.
While for CPU low latency is higher priority, for GPU it's massive bandwidth because of massive number of parallel operations.
GPU would basically need some HBM in CPU package as faster cache.
But in theory it could be done, right?
I think part of it is the average life-cycle - consoles tend to have a far longer life-cycle while in PC space hardware like that only tends to stay relevant a couple of years or so. The required cost of it combined with most consumers would prefer a more flexible upgrade path probably makes it a prohibitive product to sell.
Why do they make low, mid and high end GPU's?
By your reasoning they really should just make one tier of either CPU's or GPU's..
It's about market share and in this current climate their APU's fill quite a big gap already!
APUs are fine if you want to get 30FPS at 1080p low settings.
My point was they are not going to make PC APUs as powerful as the 6600XT and then charge 250 quid while they can milk smaller easier to produce GPUs for almost twice the price.
But nobody mentioned 6600XT's apart from you though..
The 6600XT is in most cases a max settings 1440p card while my initial query was for an APU that could actually handle 60fps at 1080p with medium settings.
Think GTX 1060 or RX580...
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What limits AMD from creating a destop APU similar in say "1080p" performance to that of the PS5?
So the PS5 has 36CU's and is closer in performance to a 6600XT 32CU vs either GTX 1060 or RX580.
The 6600XT is not a 1440p and even AMD marketed it as a 1080p card, the ps5 will do 1080p 120hz and so will the 6600XT. The RX580 or GTX1060 will not do 1080 120hz + unless we are talking ancient games like CSGO.
If you meant APU with the performance of 580/1060 then maybe you should put that in your title instead of using the PS5 which is clearly more powerful than both and sits between a 6600XT and 6700XT in performance.
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The PS5 has an APU that's geared fully towards gaming! That was my aim with the title..
I also mentioned "1080p" in the title as to not confuse anyone about like for like 4K 60hz gaming!
It was a basic question about an APU that does not require ultra low settings at 900p to achieve 30fps..
Also, I think you will find that the 6600XT is in fact far more of a 1440p card than you might think!
Seeing as the Steam Deck is rumoured to achieve 60hz at 800p with medium settings while consuming less than 20W I guess it's just a matter time..
It's still a confusing and poor choice of title since you're basically saying why can't AMD create an APU with the performance of a ps5 while then saying you actually mean an APU with the performance of a Ps4/ps4Pro.
It's a 1080p card that can do some 1440p if your happy to lower settings or you just play older games.
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Okay..
It can't be done with current hardware, unless they found a way to include GDDR 5/6 with the APU, so essentially, no it can't be done.
The use of DDR5 in the next platform will be a step in the right direction, but won't magically match GDDR6 in terms of memory bandwith. RDNA/RDNA 2 gpu cores are significantly faster than the VEGA cores used now, however as Joxeon points out; they're currently pumping those out by the boatload in the form of graphics cards. The reason we don't have RDNA 2 APU'S right now, is exactly the same reason we don't have £100/£150/£200/£250 GPU's from either team: They're selling every GPU die they make right now, as fast as they can make them (at high prices), they have absolutely no reason to cut them down, and sell them as cheaper products.