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Soundwave on 20 August 2016
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shikamaru317 said:
Pemalite said:

Except there is more to a games performance and image quality than flops.

Tegra is likely to be constrained by a very limited memory configuration, minimal caches, likely inferior geometric performance, certainly less texturing power.

Can't forget that adding additional GPU's in a "SLI/Multi-GPU" configuration doesn't scale lineraly, there is inefficiencies.

Aren't Nvidia flops usually considered to be better than AMD flops though? Look at the new 1060 for example, it has ~1000 less flops than AMD's RX 480 yet beats it in quite a few games. Also, though the tablet portion of the NX from the Eurogamer leak will most certainly use LPDDR4, there should be nothing stopping them from putting better memory in the dock portion which could override or work with the LPDDR4 when the system is docked.

So, let's say Tegra X2 is 800 gflops. The tablet runs in a battery saving mode when used by itself that lowers the system to around 400 gflops, but when docked it has accesss to it's full 800 gflops. Then a 2nd Tegra X2 in the dock works alongside it, and that Tegra X2 in the dock is paired with GDDR5 instead. I feel like in such a scenario NX would be able to handle PS4/XB1 games at roughly the same settings as XB1 when docked, as well as games designed to run on the tablet by itself.

I dunno about the GDDR5 part, I think that's where it gets complicated and you'd have devs struggling with 2 different memory architectures. 

What they could do is use a 128-bit bus like Apple does on the iPad Pro for 50GB/sec + main RAM bandwidth. Then you could have a pool of eDRAM on the GPU which Nintendo loves that is higher speed. 

If you had two Tegra X2s working in unison I suppose you'd have two eDRAM pools to work with too, which might be interesting. 

That should be enough to get you XBox One type performance, probably better in ways. 

Even the Tegra X1, might not be that impressive, but if you put two of them together in a box and added high bandwidth eDRAM into the mix ... that's a fuck-ton of power in a little package. 

I guess the SCD chip could have more eDRAM on it since it would have more breathing room. 32MB eDRAM on the SCD + 16MB eDRAM on main NX chip ... not bad? 

Lets say octa-core CPU ... quad-core ARM A72 + quad-core ARM A53. Tegra X2 GPU, which is lets say 30-40% better performance over the Tegra X1. 50GB/sec main memory bandwidth (6GB LPDDR4 RAM at 50GB/sec on 128-bit bus).