Once again that same old comparison between Studio 15 and DV6
DV6 advantages over studio 15
1) GAMING : ATI Mobility Radeon HD4650 is far more better then HD 4570
check out these reviews of both cards
HD 4650:
Notebookcheck: AMD ATI Mobility Radeon HD 4650
HD 4570:
Notebookcheck: AMD ATI Mobility Radeon HD 4570
(You will find out different game benchmarks also. As well as PCMark 05 comparision for both cards)
Also check out these overall mobile GPU Benchmark list:
Notebookcheck: Mobile Graphics Cards - Benchmark List
Kindly check out the number where HD4650 stands in the list. and where HD4570 stands
--> AMD's 2.2 GHz Processor and GPU HD4650 are giving superb gaming performance even for 720p resolution (1366 X 768)
Rough Benchmarks for crysis
crysis : 18-25 FPS (1024 X 768, everything High, No AA) on DV6 1110ax Playable

crysis : 4-15 FPS (1024 X 768, everything High, No AA) on Studio 15
Not Playable:no:
There is some another post here also in which somebody has quoted on studio 15's gaming performance. You will have to find out that on your own.
2) Build Quality :
DV6's build quality is far more superior then Studio 15. That's what I believe after seeing each one individually. Opinion can vary Here. But IMHO DV6 looks more sturdy in comparison to Studio 15
Studio 15 don't have even eject button for it's slot Load DVD writer. (I dont know if Dell has overcome this dis-advantage in very latest model)
3) After sales issues
IF you check out other posts here you will find lots of issues in Studio 15, that someone has changed mobo, or someone has changed dvd-writer or whatever. But IMHO you wont find any for DV6 1110ax. (strictly not prejudicing DV6, issues can occur in any brand at any time.).
4) A small but notable difference of Sound Quality.
DV6 is having Altec Lancing (Dolby-SRS) speakers. And IMHO sound is better then studio 15. AGAIN opinion can vary.
Studio 15 advantages over DV6
1) Customization options
AFAIK this is the best option that dell has overall. Quite imp also. You can add full HD 1080p monitor by adding more 2K. So that's good for Movie watching. different body designs are there to customize. (But you will have to spend litta bit extra for whatever you upgrade in customization.)
2) Intel P8600 processor
Intel processor will be little bit more powerful then AMD 2.2GHz
3) Backlit Key board (you can see keys in dark .


)
DV6 is having simple keyboard
4) 500 GB HDD
DV6 is having 320GB HDD
Warranty: Both models come with 1 year warranty. You can purchase extra warranty in both models by spending somewhat similar amount.
IF IF IF your purpose is gaming and Multimedia then
Please go with HP DV6 1110ax.
But finally it's your choice.