(2014-11-04, 00:51)deanlee121 Wrote: the 6592 is a beast of a CPU+GPU just like knowing more of my phone thanks PS drop it from 10 foot to day not a mark on it lol

(2014-11-04, 01:08)cookiedough Wrote:

(2014-11-04, 00:51)deanlee121 Wrote: the 6592 is a beast of a CPU+GPU just like knowing more of my phone thanks PS drop it from 10 foot to day not a mark on it lol

Same with me. I dropped inew v8 about 4 times from my lap to concrete. Not even a scratch

(2014-11-09, 09:49)twistyplain Wrote: There are two versions of Mali450MP4 which are all quad-core, of course.

The first is in 'vanilla' MTK6592 and MTK6592T. Its cores are clocked at 700MHz.

The second variant is in the less powerful MTK6592M. It's cores run at 600MHz.

Keep in mind that the Mali450 MP4 is excellent with 720p resolution but it struggles with 1080p. Mind you, the problem is not the GPU...

Theoretically, the GPU shouldn't have a problem with 1080p but you will notice that the frame rates are not so good with 1080p screens. The issue is caused by inadequate memory bandwidth. As Qualcomm has proven with their Snapdragon, every megapixel should be supported by at least 4Gbps memory bandwidth. The MTK6592 has about 5.4 Gbps total if it has DDR2 RAM. When you share this out between the octa-core CPU and quad-core GPU, the sweet spot when it comes to resolution is at 720p. However, adding a 1080p screen increases the bandwidth requirement to about 10Gbps to run smoothly. I think DDR3 RAM could improve things noticeably.

Bottom line is that although Mali450 MP4 can handle the resolution, it simply doesn't have enough bandwidth to push the pixels to the screen for 'lag free' 1080p gaming.

Now you know that it's not the GPU that lets you down when playing 1080p games ;-)

+REP if I helped :-)

(2014-11-09, 11:35)los33 Wrote: The 450 mp & 450 mp4 are the same chipsets with just minor fixes.

The MP version is the more powerful version which most of the 6592 chips include while the mp4 is put in the quad core.

These two chips can easily run 1080p with only 726mb ram as most of the processing power is spread thru the cpu cores and uses maybe 256 mb ram just to consistently transfer the bandwidth thru the cores.

These current phones being produced are using a 2013 build of the driver which you will notice lag in videos whether they are 1080p or 320p because of a vram issue.

If you update the driver and enable 1080p thru the gpu configs then you will undoubtedly get lag free from videos. But games is another problem as not all games are v3 shader optimized which the mali uses.

Really it would be rarely seen if anything as it would cause a millisecond lag.

(2014-11-11, 09:06)twistyplain Wrote:

(2014-11-09, 11:35)los33 Wrote: The 450 mp & 450 mp4 are the same chipsets with just minor fixes.

The MP version is the more powerful version which most of the 6592 chips include while the mp4 is put in the quad core.

These two chips can easily run 1080p with only 726mb ram as most of the processing power is spread thru the cpu cores and uses maybe 256 mb ram just to consistently transfer the bandwidth thru the cores.

These current phones being produced are using a 2013 build of the driver which you will notice lag in videos whether they are 1080p or 320p because of a vram issue.

If you update the driver and enable 1080p thru the gpu configs then you will undoubtedly get lag free from videos. But games is another problem as not all games are v3 shader optimized which the mali uses.

Really it would be rarely seen if anything as it would cause a millisecond lag.

I agree that these GPUs are all the same version. But there is no Mali 450 - all of them have a MP at the end - the MP could be short for Multi-Processor. The 4 in Mali 450MP4 means that the GPU has 4 cores. The minimum number of cores for this GPU is 4 and maximum is 8. The GPUs used in various MTK6592 phones only vary in terms of core frequencies and core counts.

If by the quad-core you mean MTK6582, it has a Mali 400 MP2, not 450.

When I talk about bandwidth here, I am alluding to FSB (Front Side Bus) bandwidth. The CPU, RAM, and GPU use this bus to transfer the massive amount of data that moves in between them. It the bus is not wide enough, you must reduce the total amount of data moving through it for smooth performance - a 1080p screen needs more than 2 megapixels per frame but a 720p screen only needs 900k pixels per frame.