Suitable Nvidia 8800 GTS with 640MB DDR3 Replacement?

[computergeek]

It would have to happen eventually, I am surprised it lasted this long but nope sure enough it started arti-facting in battlefield bad company 2 (purple spots) and yet it has been fine for weeks overclocked so I down-clocked to stock then overclocked it again until stable and all is fine but. I think it only has another year or two left in the old thing.
I am currently looking at an GT-240X-ZHFC
XFX GeForce GT 240 550M 1GB DDR5 HDMI DVI VGA PCI-E.

http://www.videocardshop.co.uk/view...dshop.co.uk/search.aspx?sub=GeForce200+Series
And I used an online psu calculator with all my current specs plus the new card, I might be getting and my cpu overclocked stable to 3.60Ghz and I got maximum needed watts was 340 but after some research the card needs at least a 400 watt psu for a bit of leg room.
Will this bigger psu suffice for my system.
OCZ Stealth Xstream II 500W PSU - 3x SATA 1x PCI-E.

http://www.ebuyer.com/204355-ocz-stealth-xstream-ii-500w-psu-3x-sata-1x-pci-e-ocz500sxs2-uk
Ideally I wanted another graphics card with at least 320bits like my current one and this one only has 128bits.
But all in all this little upgrade would only cost me a maximum of 102 pounds and, I already know about the pcie 2.0 vs 1.0/x16 issue for my current board but after some more research at my current resolution of one monitor at 1280x1024, 75 herts refresh rate it shouldn't be that bad and, I should see a significant increase in performance.
PC Spec's:
PSU-Antec 380 watt,
Motherboard-MSI P35 NEO2,
2x1GBDDR2 PC2-6400(400Mhz),
2X2GB DDR2 Ballistixs(With status leds)
Freezer 7 pro rev 2,
[Overclocked 3.60Ghz Stable]Intel(R) Core(TM)2DUO E6850,
[Overclocked-Custom-Bios-Flashed]Nvidia 8800 GTS 320bit G80(A2,96sp)with 640MB DDR3, Core Clock:649, Shader Clock:1488 and Memory Clock:902,
Hardrive(sata)-Samsung HD501LH 500GB,
Hardrive(ide)-Maxtor 4R120L0 120GB.
OS'S-XP-32bit/Windows 7-64 bit/Kubuntu 11.10-64 bit.
PC Case-Antec
Resolution-1280X1026.
Refresh Rate-75 Hertz.
CPU Clocking's:
CPU FSB:400
CPU Ratio:9
CPU Frequency:3600
VCore:1.4
Memory Volts:2.00
FSB:Auto(800)Mhz
NB:1.3
SB:1.05(Default)

 

[David]

My gut feeling is that a GT240 wont touch your 8800GTS. Using the (very rough!) tables here (http://www.videocardbenchmark.net/gpu_list.php) the GT240 scores 772, vs 860 for the 8800 GTS.

Alternatively, for ~110 GBP (from somewhere like Scan.co.uk) you can get a GT 440 (http://www.scan.co.uk/products/1gb-...u-810mhz-shader-1620mhz-96-cores-dl-dvi-mhdmi) - which scores 856 - for £63 and a decent 550W Antec PSU (http://www.scan.co.uk/products/550w-antec-vp-550p-gb-atx12v-23-ac-200-240-v-550-watt-active-pfc-psu) for £43. (See 'Today Only' for the discounted prices).

 

[tRidiot]

My 8800GTX kills my GT240. About 30-40% on most benchmarks.

 

[computergeek]

I was staring at this card all day and thinking the same thing because where's the 6pin socket no wonder it wouldn't touch my current card.
I will have to rethink this or get another 8800gts the only problem is, I can't find my exact graphics card anymore. Its quite rare.
Also if the gt440 only scores 856 and my current card scores at least 860 well actually its much higher in my system but that's besides the point here, I just don't want to be downgrading.

 

[BossBorot]

I would look for a used 460 1gb

 

[computergeek]

So I did some more digging and found these for a very good price.
Nvidia GeForce 8800 GTX 768MB
DX10 £55.00
http://uk.webuy.com/product.php?sku=SGRAF9P9HGAA
Nvidia GeForce GTS 250 1GB
DX10
£65.00
http://uk.webuy.com/product.php?sku=SGRANVI250GTS1GB
So the Gtx that I can pick up from bolton plus the psu David suggested would come to only £103 but I think my current psu could get away with it as everything in total with either graphics card would only need 340 watts but I still think a bigger psu is the way to go.
But for convinence I may just get this psu from micro direct locally.
http://www.microdirect.co.uk/Home/Product/52133/OCZ-PSU-ZS-550W-80--Bronze
Its a tad more dear but it only bumps the price up to £105 with the gtx.
And hopefully now overclocking my chip to 4.0Ghz won't be so much of a struggle oh who am I kidding with this much leg room, I will be overclocking the nuts of my machine.