Battlefield 3 Lag at 640x 480 with 4890,Q8300?

I REALLY cant understand why i cant play this game on at least medium at 1080p. It allmost seemes to lag the same at 1080p when most settings are high just like when everything is off an low at 640x 480.

Spec: ATI 4890, Intel Q8300, ASUS P5QPL-AM Motherboard, 750W CHEAP PSU yea i know its way to much, 500Gb HDD just short of half full, 4 Gb DDR2 800Mhz 6-6-6-18 but can run at 5-5-5-15 stock but the mother board i have wont let me run it at stock.

The only thing i can think it is the drivers for my card or the game its self and ideas?

Is it lag, or is it low framerate?

Lag: Your network sucks.

Low framerate: Find out your average framerate then come back.

Low framerate. They are all at 1080p.

Low, Min, Max, Avg.        Medium, Min, Max, Avg           Auto: Min, Max, Avg

          19, 72, 32.63                        18, 56, 28.036                    19,  61, 33.382                                           

                                                                     

 

 

hmmmmmmmm could be the psu,make sure it has the 12+v dual railing and 80 plus bronze.btw is BF3 the only game that suffers from this framerate drop?

 

no a few of the assassins creed games do but i found out there just bad ports, my psu is http://www.pcdirectuk.com/products/2167-win-power-psu-750w-20-24-12v-844-pin-dual-80mm-1x-6-pin.aspx its a bit crap lol do you think its this now ?

I hate to say it but you may have to upgrade to make the game playable. After some Googling I don't think anyone with that card is happy when playing BF:3.

It is know that BF:3 dosn't much care what CPU you have just so long as there at least two cores. It's all about the graphics card with BF:3. The good news is that you wont need to spend much to get a noticble bump in gaming performance. There is a guy in my clan with an AMD 5770 and he is playing just fine, Med to High settings at playable frame rate. It dosn't stop him from killing me a load of times when we play. I would recomend a second hand 6870 as a good place to start. I have seen them on eBay for around the £60 mark (Less than $100) You could get a new 6770 for under $100 (New Egg)

In some regards it just needs to be newer, DX11, hight memory bandwidth... stuff like that. Might find someone on the forum that's just upgraded and let you have it at a resonable price.

here is something pretty strange,the PSU you are using only has 1 6-pin connector for the GPU,and the 4890 requires two 6-pin connectors so how are you powering this GPU?

 

a 2x molex to 6 pin adapter 

exactly what i was thinking,now im not sure if this is correct but i heard that these adapters have a problem maintaining the power when the card is in full load,such as playing battlefield 3 but if im wrong can someone please correct me because im not 100% sure of this information. but i googled it as well and seems that you are not the only one with framerate issues on bf3 using a 4970,so i think its the game,because believe-it or not battlefield 3 is one of the most unstable games ive played,i had to buy an audio card just to play the game without punkbuster crashing my pc

 

Yea bad company 2 plays fine but BF3 is a mess the 1 thing that pisses me off is my friend has a gtx 240 i think and he plays the game, it allmost never drops below 25 fps on low were as mine does we have simerlar specs but he has a Q6600 and 3 gb ram and i have 4 really ashamed with this game.

Thanks for the help every 1.

np but just for curiosity,do you have the latest drivers installed?

Seems about right to me. Not a very powerful system, with little RAM and an average gpu.

 

 

4Gig DRR2 Ram, 4890 and trying to play at 1080p... consider yourself luckly lol

Get your self a 6850 :P

hey genius,there isnt much difference between a 4890 and a 6850 performance wise on 1080p,the 4890 is still a great card

yea

As far as I know, the 4890 is just an overclocked version of the 4870...either that or it was a die shrink or something. I can't remember.

Either way, here's the comparison between a 6850 and 4870. I'd throw the 4890 in there, but they don't have benchmarks for it.

http://www.anandtech.com/bench/Product/304?vs=291

The 4890 is really starting to get old. Hell, even the GTX 460, 6850, and 6870 are starting to show their age.

You're going to have to upgrade your GPU when it comes down to it. I would recommend at least a Radeon HD 7850.

Thanks but im never going near ATI again yea there prices are good but jesus there drivers are a joke plus i want to use physx in games so im gonnah go green might get a gtx 480 what do you lot think about that.