Battlefield 4 demo ran on an AMD Radeon HD 7990 ‘Malta’ Video Card

[Michael-5]

AnthonyW86 said:

Michael-5 said:

 

If you look at my very first post on this thread, I do mention the GPU processing power (I also mention that the demo was played on a PC with around 6,000 GFLOPS, or on a processor 3x as powerful as PS4's). Here I'll quote it for you

http://gamrconnect.vgchartz.com/post.php?id=5247550

I'm arguing that the PS4 is at most 9x more powerful then the PS3, mostly because of the GPU Processing power and increased RAM. It can't be more then 9x more powerful because with the sole exception for RAM, none of the components increase by anything greater then 9x, with some aspects like the Clock Speed, and GPU Bandwidth (This was a bottleneck for PS3) increasing by as little as 1.6 and 3x.

VRAM =/= RAM, PS4 has about 176GB/s VRam Bandwidth, and the PS3 has 22.4GB/s, which is about an 8x increase (I said 3x by accident just there.

As for the CPU, it's not bad, but it's still a CPU designed for laptop performance, not PC Tower performance. PS3 also had 7 CPU's with 3.2Ghz per core, which isn't that much different then PS4's. I'm not sure PS4's CPU's capabilities, but PS3's CPU's do 25GFlops and double precision. I think the AMD CPU does between 60-90 GFlops, so the CPU jump is in the range of 2.5-3.5x more powerful.

Again games are very gpu dependend these day's and so the gpu will be the most important factor in determing how much faster it is. If a game runs 9x faster because of the gpu, than the system is 9x faster in that application. And games are the playstation's main application. Also this is only raw processing power, PS4's gpu is based on much newer technology and uses much more efficient instruction sets, so the difference in speed will be bigger in a real world scenario.

Also the Cell in PS3 is not ''7 cpu's'', it's one cpu with one PPE and seven SPE's from witch one is turned off. Only the PPE can be seen as an actual cpu core though, the rest are supporting processing units and can only be used for a very limited amount of different tasks. The PPE has to manage those SPE's, PS4's 8 cores can all be used seperatly and are ''true'' cpu cores.

Also you fail yet again to count in the advantages of the PS4 one chip design, drastically improving data flow. With PS3 all comunication between cpu amd gpu had to pass over the motherboard, now it's all on one chip.

But since you clearly don't know what you're talking about, we are done discussing here.

That I agree with this.

So we can agree that PS4 is about 9x as powerful as the PS3?

Also that explains the CPU situation, I said before how big the jump was, I only said it probably wan't too large considering it's a Laptop CPU in the PS4. So the jump is what 5x (You said the new CPU is comparable to a Quad core-4.0GHz, PS3 had a 3.2Ghz single core). Still my arguement is that the CPU's performance won't make the PS4 more then 9x more powerful, if anything it would bring it down a bit.

Hey, man, if you read my posts, I never once contested anything you said. I'm only trying to explain to CGI-Quality that if the GPU performance is 9x PS3's power. all all the other jumps are 9x or less, then the PS4 is not going to be more 9x as powerful (I was arguing 6-9x because of other slower, but I'm not too computer oriented, so I won't argue 9x). You seem to agree on me with this.

So what's with the negative attitude?

Do you think it's about 9x as powerful, or slightly less? or slightly more?