Notebook graphic card help

[punisherw3]

Hello, I am going to buy new notebook i want to play some games like SC2,Crysis etc.I just cant choose graphic card between ATI Mobility Radeon HD 4650 and
ATI Mobility Radeon HD 5470 which one is better ?

 

[Gilles]

Depends what you want. Seems like the 5470 supports more (like direct X11), but the 4650 is a faster card. For gaming, I'd definitely go with the 4650.

Google is your fiends btw. I didn't know anything about these cards before looking at your post.

http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-5470.23698.0.html
http://www.notebookcheck.net/AMD-ATI-Mobility-Radeon-HD-4650.13883.0.html

Scroll down a bit and notice the FPS rates on the games.

 

[Azndragon]

Depends what you want. Seems like the 5470 supports more (like direct X11), but the 4650 is a faster card. For gaming, I'd definitely go with the 4650.

Google is your fiends btw. I didn't know anything about these cards before looking at your post.

http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-5470.23698.0.html
http://www.notebookcheck.net/AMD-ATI-Mobility-Radeon-HD-4650.13883.0.html

Scroll down a bit and notice the FPS rates on the games.

You're right
http://www.notebookcheck.net/ATI-Mobility-Radeon-HD-5470.23698.0.html
http://www.notebookcheck.net/AMD-ATI-Mobility-Radeon-HD-4650.13883.0.html

For some strange reason, despite the clock differences and GDDR5 memory in the HD M 5470, the HD M 4650 is better.
So strange.

 

[Dr Super Good]

Keep in mind the mobility cards are only 1/5 or 1/10 as powerful as the non mobility cards with same/simlar numbering.

 

[Gilles]

Your point?

 

[BlargHonk]

Nah, actually not with the Mobility HD4650, it's about equal to a the DDR2 version of the desktop one, ATI did a smart naming job on the last M series.

Still, it's like comparing an X800 to an X1800, Desktop on both.

 

[punisherw3]

Ok thanks guyz , but i think i will buy notebook with ATI Mobility Radeon HD5650

 

[BlargHonk]

The HD5650 isn't much of an improvement over the HD4650, something like 5-10%, it's the kind of difference that just getting the newest drivers could do.

It does have DX11 though, which is always good, not really powerful enough to really do much with DX11 though.

 

[Dr Super Good]

Incorrect, the features DX11 allow over DX10.1 (I take it that is what the other supports as ATI loved that version) can ammount to more than just the 5-10% the hardware shows.

The major change is in the generation of model geometry. DX11 games do not have to send vast ammounts of vertex data to the graphic card and also does not need to store vast ammounts of vertex data in the graphic card. The result is less memory used, less bandwidth used and even less CPU power used (although the GPU probably is slightly more loaded). Also DX11 allows games to more efficencly utalize GPU power by simplifying distant geometry without having to resort to loading new models while improving the detail of art closer to the camera.

However keep in mind that this is only when running fully DX11 designed games. In DX10.1/10 the differences start to become like BlargHonk described.

 

[punisherw3]

Thanks for your advice guys u help me alot , one more question will this notebook able to run assasin creed 2 and starcraft 2 fluently and what details in notebook resolution of course 1366 x 768
Specs:
AMD Phenom II Triple-Core N830 2,1 GHz 1,5 MB L2 Cache
4Gb ram 2+2
ATI Mobility Radeon HD5650 1gb DirectX 11, Shader Model 5.0, OpenGL 3.1
500gb hard disc
Win 7 home 64bit

 

[Gilles]

Incorrect, the features DX11 allow over DX10.1 (I take it that is what the other supports as ATI loved that version) can ammount to more than just the 5-10% the hardware shows.

The major change is in the generation of model geometry. DX11 games do not have to send vast ammounts of vertex data to the graphic card and also does not need to store vast ammounts of vertex data in the graphic card. The result is less memory used, less bandwidth used and even less CPU power used (although the GPU probably is slightly more loaded). Also DX11 allows games to more efficencly utalize GPU power by simplifying distant geometry without having to resort to loading new models while improving the detail of art closer to the camera.

However keep in mind that this is only when running fully DX11 designed games. In DX10.1/10 the differences start to become like BlargHonk described.

And the games he named do not use DX11. It's still not worth having DX11 compatibility, when you can have much better speeds when using DX10, at least for now, and the near future.