With all the fuss about the "quad core" gpu, I'm wondering how it would do in comparison to the gpu integrated in sandy bridge, or even a discreet card if it's that fast.
Any ideas?
Any ideas?
How does the ipad3 gpu compare to pc gpus?
- Thread starter SickBeast
- Start date
Stuka87
Diamond Member
- Dec 10, 2010
- 6,240
- 2,559
- 136
No clue how it compares to a desktop GPU. The 'quad core' bit is that it is basically four GPU modules. The SGX 543 its a modular design. So you can use one module, or you can use 64 modules. All depends on how much power consumption you can handle. The iPhone 4S/iPad2 use an MP2, so two modules.
But they run at a low clock rate due to power consumption. So I don't think they are quite comparable to a desktop GPU.
Cerb
Elite Member
- Aug 26, 2000
- 17,484
- 33
- 86
From what little I can find, it looks like it should be around what Zacate has now. Poly/s and fillrate are about all I can find comparable, so I would call the margin of error compared to real performance at least 50%.
No, those are idiot fanboys, the same that liked to say the XBox360 and PS3 were faster than gaming PCs when they came out. RAM latency and bandwidth were too crippling, even if the rest were as fast.
Both XB360 and PS3 can do 8+ billion texels/s, compared to around 1/core for PowerVR's, and apparently even that has some stars-aligning requirements. Both can do shading of about 20 billions pixels/s. Finally, both have more memory bandwidth than any small mobile device will for some time yet to come.
The iPad3 may finally get faster than the slowest PC IGP. Much more than that, and they'll have to kiss their battery life good bye.
Last edited:
That's not true at all.
A5X gpu:
250Mhz
16 4-way 128-bit ALU with multiply-add=64 MAD per clock=32 gigaflops
166 million polygons per second
Xbox 360 GPU
500Mhz
48 4-way 128-bit ALU with multiply-add+48 32-bit scalar ALU=216 gigaflops
500 million polygons per second
And just for comparison
HD 7970
925Mhz
128 16-way 512-bit ALU with multiply-add=3.8 teraflops
1850 million polygons per second.
The new ipad's gpu is a big fish in a small pond, but when compared to the big boys it's really just a minnow.
Even when ignoring the crippling lack of memory bandwidth, developers can program much closer to the metal on consoles, while phones/tablets have go through OpenGL(ES).
ViRGE
Elite Member, Moderator Emeritus
- Oct 9, 1999
- 31,516
- 167
- 106
The only practical spec you can compare is compute performance; since PowerVR is a TBDR, trying to compare ROPs or even texturing is going to be difficult at best.
To that end, at the low end the SGX543MP4 @ 32GFLOPs would be comparable to 2008's GeForce 9300 GS (G98), which is at 33GFLOPs. At the high end, the only time there has ever been a high-end GPU with that little performance was at the very start of the DX9 era; the Radeon 9700 Pro in 2002 could do 34GFLOPs, but that was a non-unified shader architecture.
Memory bandwidth is also very lopsided; the 9700 Pro had 3 times the memory bandwidth (and that was without having to share it with a CPU), and it only gets worse from there.
The SGX543MP4 is very powerful for a SoC GPU, but SoCs are perpetually 10-15 years behind desktop components. So by that metric we've just reached the point where we can play Jedi Knight II on a SoC.
To that end, at the low end the SGX543MP4 @ 32GFLOPs would be comparable to 2008's GeForce 9300 GS (G98), which is at 33GFLOPs. At the high end, the only time there has ever been a high-end GPU with that little performance was at the very start of the DX9 era; the Radeon 9700 Pro in 2002 could do 34GFLOPs, but that was a non-unified shader architecture.
Memory bandwidth is also very lopsided; the 9700 Pro had 3 times the memory bandwidth (and that was without having to share it with a CPU), and it only gets worse from there.
The SGX543MP4 is very powerful for a SoC GPU, but SoCs are perpetually 10-15 years behind desktop components. So by that metric we've just reached the point where we can play Jedi Knight II on a SoC.
Stuka87
Diamond Member
- Dec 10, 2010
- 6,240
- 2,559
- 136
Apple never compared their graphics to desktops though. They compared it to other mobile GPU's, like the Tegra 3. And it blows the Tegra 3 out of the water. SO in that case its a big deal. But its not meant to compare to desktop graphics.
Phynaz
Lifer
- Mar 13, 2006
- 10,140
- 819
- 126
This was probably from a post in the mobile devices & gadgets forum that's been proven to be based on a poorly written article with sloppy journalism. The actual quote is that the new iPad has more memory and a higher resolution than either the PS3 or Xbox 360.
At no point did they claim it was more powerful or had better graphics.
No, they didn't. Some crappy journalist claimed that they did without further citing any sources. It was actually an Epic employee at Apple's event, and he didn't claim it was more powerful.
notty22
Diamond Member
- Jan 1, 2010
- 3,375
- 0
- 0
The Sony Vita can run similar graphics to the PS3, in fact some games can be run on both, with game save resumes working on either system. I played with the new Vita at Best Buy , it is awesome. Just to expensive. It's about half as heavy as the original PSP with umd drive.
Tegra3, not ps3. And even though we'll have to see if their claim is correct, I assume it will be at least 2x in just about anything, and up to 4x in certain scenarios. Compared to the competition in the tablet market, its beastly.
Obsoleet
Platinum Member
- Oct 2, 2007
- 2,181
- 1
- 0
I don't have any Apple products other than an Ipod Nano 6g that I got from the Nano 1G replacement program. I use an android phone because for my purpose (WORK)- the iphone is too limited in it's functionality to do what my work requires. I'm in the 1% that actually could not function in my job without a smartphone. That said, I like the iPhone but to me it's a toy if it can't meet work requirements.
I'm not even a Steve Jobs fan. Sure, his keynotes were entertaining but I never took him seriously. But this iPad3 is pretty epic. The GPU has to be fairly powerful to push 2048 res even in basic apps. I'm pretty excited, and the answer is clear, Nvidia isn't going to just walk in this market and make an old pro like Apple look like fools. Quite the contrary. Ipad3 is clearly unmatched, and will remain so for some time. And it won't be by an android tablet, it will be by the Ipad4.
I'm not even a Steve Jobs fan. Sure, his keynotes were entertaining but I never took him seriously. But this iPad3 is pretty epic. The GPU has to be fairly powerful to push 2048 res even in basic apps. I'm pretty excited, and the answer is clear, Nvidia isn't going to just walk in this market and make an old pro like Apple look like fools. Quite the contrary. Ipad3 is clearly unmatched, and will remain so for some time. And it won't be by an android tablet, it will be by the Ipad4.
Keysplayr
Elite Member
- Jan 16, 2003
- 21,209
- 50
- 91
TRENDING THREADS
-
Discussion Zen 5 Speculation (EPYC Turin and Strix Point/Granite Ridge - Ryzen 9000)- Started by DisEnchantment
- Replies: 24K
-
Discussion Intel Meteor, Arrow, Lunar & Panther Lakes Discussion Threads
- Started by Tigerick
- Replies: 19K
-
Discussion Intel current and future Lakes & Rapids thread- Started by TheF34RChannel
- Replies: 23K
-
-
Facebook
Twitter