Pemalite said:
GribbleGrunger said:
I'm in the same boat. I'm reading through the GAF thread to try and understand but failing at the moment.
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It means the Playstation 4 will catch up to PC games in terms of graphics quality... Right now most Multiplats are a mix of medium/high quality settings 900/1080P and 30fps.
It means that they will be on Ultra settings, full 1080P and 60fps.
Games like Uncharted will be able to have larger, richer and more detailed worlds.
It should also be a boon for VR as it shouldn't need to rely on various tricks to get the job done which comes with it's own caveats.
This is what the Playstation 4 should have launched as IMHO, but I digress.
vivster said:
As long as we don't know the actual performance of the 480 and the clock speed in the PS4 APU it does mean nothing.
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We do have an idea. Albeit, a rough idea.
taikamya said:
Not really. The CPU bottleneck depends on the resolution. The higher the resolution, the more GPU power is used, hence the lower bottleneck the CPU can produce. So in 1080p the difference may not be big against the current PS4, but in 4K the difference will be outrageous.
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Not exactly.
If you are CPU bottlenecked at 640x480 and scale up the resolution and graphics... You will still be CPU bottlenecked, just GPU is constrained more.
Usually the CPU will just impact your minimum and maximum framerates if you are bottlenecked, but keep in mind these are consoles, developers have an intimate knowledge of the amount of resources they have.
An example would be when I was running a Phenom 2 and Mass Effect 3 was released, I had Dual Radeon 6950's at the time, I was CPU bottlenecked, even at 5760x1080 as the CPU wasn't able to feed the GPU regardless if I was gaming at 1920x1080 or 5760x1080, I wasn't able to have full GPU utilization.
I eventually upgraded to a Core i7 3930K and such issues were a thing of the past.
| taikamya said:
Very low clocked. By the specs, the 480 is going to have around 5.5TFlops and it's performance should be a little over the 390.
If rumors are to be considered, the PS4Neo has 4.something TFlops, but that's the whole system, not only the GPU. So basically the GPU is cut down in half. Talk about a low clocked version!
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Probably still looking at Radeon 7970/280X/380X/ levels of performance though, which let's be honest, is what the console should have launched with to begin with and is nothing to sneeze at.
JRPGfan said:
This also means they re useing a cheap chip with high power effeciency.
At 14nm FinFET this chip clocked at 911mhz probably wont generate all that much heat.
The 1200mhz+ version of the RX 480 is probably around 135watts (with a 150w limit)
At 911mhz clock speed, it ll be under 100watts for the GPU.
The chasis for the PS4 might not have to change too much.
Basically the new PS4 neo could end up looking much like the older model (same small form factor).
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Depends on the rest of the SoC and the binning.
Consoles typically have conservative binning due to not being able to die-harvest parts that meet certain clocks/voltages/functional units, so they usually are a little less efficient in regards to performance/watt.
And with this node being so new and the chips being so large, we have no idea what yields are like.
But a 900mhz~ chip should be able to get impressively low, I wouldn't be surprised if the entire SoC was 150w.
aLkaLiNE said:
Was there any speculation about Sony utilizing a semi custom version of the 480? Because while the OG Ps4 architecture was structured after AMD Pitcairn, there were features not available in the retail version found on PC. Wondering if Sony applied the same practice here |
Having a Polaris GPU in a SoC alone means it's a semi-custom design as no such other chip exists. - Which also means Sony would have given AMD some ideas of what they want.
How much farther they went with that though will likely be something we need to wait on Sony to answer as AMD is likely under various NDA agreements.
JRPGfan said:
This is really smart though... if AMD can sell a intire card at retail for 199$, and make profits of it, the chips themselves cant be that expensive to make.
Thats good news for the PS4 neo, it means it wont be to expensive.
Those 399$ rumors for the PS4 neo look likely at this point.
Which also means the normal ps4 at its 349$ price, is soon going to see a price drop (299$ or less). |
The chips themselves are cheap as chips.
Keep in mind when Sony buys the chip it will include the CPU, chipset, various pieces of logic, GPU etc'. - That helps keep costs low as they are only buying the one giant chip, only have to design traces on the board for one chip, reduced licensing fee's etc'.
Sony isn't buying their hardware like PC gamers either, they are buying in Bulk with a special price from AMD and they don't need big vapor chamber, copper blower coolers, packaging, OEM overheads, or the lots-of-layers PCB.
So pricing will be allot different, I wouldn't be surprised if Sony was paying $150-$200 for the complete SoC, or less.
JRPGfan said:
This is really smart though... if AMD can sell a intire card at retail for 199$, and make profits of it, the chips themselves cant be that expensive to make.
Thats good news for the PS4 neo, it means it wont be to expensive.
Those 399$ rumors for the PS4 neo look likely at this point.
Which also means the normal ps4 at its 349$ price, is soon going to see a price drop (299$ or less). |
4k will be reserved for media and simpler casual/indie games, probably.
Quad-High Definition should be more than possible for more complex games like Uncharted 4 maybe?
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