Which one is the best?

Check the benchmarks: http/techivian.com/mali-400mp-vs-sgx-543mp4-vs-543mp3-vs-543mp2-vs-540-vs-535-vs-adreno-320-vs-225-vs-220-vs-205-vs-mali-400-vs-intel-xolo/

I know this is old, but encase anyone else comes here, the SGX544MP2 is the most powerful out of these by a long shot. The Mali-400 if its the MP4 version is 2nd most powerful, but still only half as powerful as the SGX544MP2 at best. If the Mali-400 is the MP2 version, then its 1/4th the performance at best, and the Adreno 203 is close to it.

Considering you're such a huge asshole I'm surprised anyone bothered to reply at all.

SGX544MP2 is capable of 4K video processing. The other two are only capable of 1080p HD. So there you have it.

In my experience the mali is way better than that particular adreno.which is basically garbage.
I take it we're talking about Chinese phones here? In my experience you'll be lucky if what arrives is what was listed in the specs tbh.

I came here looking for the same information. And I have to agree with the op. Why not just give a straight answer if you happen to know the required information ?

What is it with people pointing to a huge amount of information and saying "your answer is in there somewhere". No shit Sherlock! Maybe we should just go to a fucking library instead.

The op asked a perfectly legitimate question. Politely and in what they believed was the right place to get a reasonable an hopefully informed answer.

And basically he was told "the answer is on the internet. Are you stupid!? "

If you don't like answering questions on this subject why offer a reply at all? That's like someone who hates kids becoming a teacher ffs!

PowerVR SGX544 is the best of all u've mentioned and the reasons are below:[/b]
SGX544 is capable of exceeding both OpenGL ES 2.0 and DirectX9_3 requirements, making it ideal for tablets, computing devices and smartphones.
PowerVR SGX544 can enable customers to support popular APIs such as OpenGL ES 2.0, DirectX9_3, desktop OpenGL 2.1 (including X11 integration with DRI2, EXA and DRM support), and OpenCL 1.1 Embedded Profile.
Not only that, but we have recently pushed the boundary for all existing PowerVR Series5XT GPUs with a new series of API extensions which include OpenGL ES 3.0 features like MRTs, occlusion queries, seamless cube maps, sampler access from vertex shaders, floating point textures, GLSL full-precision floating point, R and RG textures, min/max blends, and multisample render buffers.
Developers targeting current generation platforms will be able to take advantage of PowerVR SGX544’s advanced texture support. Alongside widely adopted texture compression standards like ETC, ETC2, PVRTC and DXTn, all Series5XT and Series6 GPUs support Imagination’s PVRTC2 format. This recently updated texture compression standard adds a wide range of new features including:
improved image quality, especially for textures with high contrast, large areas of significant colour discontinuity, or boundaries of non-tiling textures
better support for pre-multiplied textures
support for arbitrary sized NPOT (Non Power Of Two) textures
sub-texturing

Also Check The Table on this site which explains the best.. Sure shot, this link will just give all ur answers..
http/www.cnx-software.com/2013/01/19/gpus-comparison-arm-mali-vs-vivante-gcxxx-vs-powervr-sgx-vs-nvidia-geforce-ulp/

PowerVR SGX544mp2
is the best among that GPUs you've said.
Mali 400
is the decent GPU for a most game.(if you are a gamer) but not powerful than PowerVR

Somebody conduct a review about that.
Power VR SGX544mp2(Galaxy S4) and Mali 400(Samsung Galaxy S2)
and Power VR SGX544mp2 runs 2048 resolution and Mali 400, on the other hand, runs smooth 1080p below.

if talking about Adreno.
Adreno 203 is the weakest adreno. If it is Adreno 320. Might be similar performance or slight greater to Mali 400.

Hope this helps