Best Graphics card for dell optiplex 780 ATX tower

[Bevs4Days]

Computer Specs:
My Computer Specs:
Dell Optiplex 780
Windows 7 Pro 64 bit
Intel Core 2 Duo E8400 @ 3.00Ghz
8 GB Samsung PCI3200 DDR3 Ram
70 GB Seagate Barracuda HDD
320 GB Samsung HW31 HDD
1 TB Western Digital HDD
AMD Radeon HD 4680 Sapphire Edition 1Gb DDR3 Ram PCI express x16
Im not sure what the PSU is but it runs all this fine ^ and ive had dual monitors set up.
but im going to say its 305W (its says its a L305P-03) .Either way it seems to do fine for me however i wanted to upgrade my graphics card to an AMD radeon HD 7990. Possible? Worth it? answers recommendations all welcome.

 

[Epic Sasa]

best graphics card AMD RADEON r9 3999999999999999999x 12903810939012watts needed jk
750 ti is fine since it dosent run on too much power and 300 watts may be just enough for it you are limited by that power supply

 

[Entomber]

if you have a 305W PSU almost any AMD GPU is out of the question.

GTX 750Ti may be the only option you have with that PSU

 

[Eximo]

Indeed that is a Dell 305W power supply for a light server.

7990 would be out of the question with a 300W supply, also a little dated. R9-295X2 would be contemporary. Both would need about 300W on their own.

GTX750 and GTX750Ti are the most powerful GPUs available that do not require external power. They run solely off the power provided by the slot. (GTX750ti uses about 60W)

Anything more would be bottlenecked by your older processor anyway (And these might be a little bit as well)

But that depends on the games you want to play and your screen resolution. GTX750Ti can handle 1920x1080 at above 30 fps for practically any available game. Reduction of settings will increase the performance.

 

[Bevs4Days]

if you have a 305W PSU almost any AMD GPU is out of the question.

GTX 750Ti may be the only option you have with that PSU

Well right now im running a card that need 400W jsut fine like i said and i have a HD 5450 which is also a 400W card that seems to run fine. However im not against upgrading my PSU.

 

[Bevs4Days]

Indeed that is a Dell 305W power supply for a light server.

7990 would be out of the question with a 300W supply, also a little dated. R9-295X2 would be contemporary. Both would need about 300W on their own.

GTX750 and GTX750Ti are the most powerful GPUs available that do not require external power. They run solely off the power provided by the slot. (GTX750ti uses about 60W)

Anything more would be bottlenecked by your older processor anyway (And these might be a little bit as well)

But that depends on the games you want to play and your screen resolution. GTX750Ti can handle 1920x1080 at above 30 fps for practically any available game. Reduction of settings will increase the performance.

Wait they need there own power supply? How does one even do that!

 

[Wolfshadw]

Not their own power supply, but additional power from the power supply via power connections direct from the power supply.

-Wolf sends

 

[Bevs4Days]

Not their own power supply, but additional power from the power supply via power connections direct from the power supply.

-Wolf sends

ok noted. ok so to get the HD 7990 ( and fully use its power) What would be the ideal setup because im looking to upgrade my computer anyways.

 

[Eximo]

Those 400W numbers you are quoting are the recommended supply for total system draw. Not what the card itself uses.

An HD4670 supposedly draws 70W under a full load (A PCIe 16x slot can deliver 75W)

 

[Bevs4Days]

Those 400W numbers you are quoting are the recommended supply for total system draw. Not what the card itself uses.

An HD4670 supposedly draws 70W under a full load (A PCIe 16x slot can deliver 75W)

Ok lets say i upgrade to a 750W Psu what Graphics card range are we dealing with then

 

[Eximo]

Something like this. Would be hard to justify buying a 7990 when the R9-295X2 is faster and cheaper.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($224.29 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ NCIX US)
Motherboard: Gigabyte GA-Z97MX-Gaming 5 Micro ATX LGA1150 Motherboard ($118.75 @ Directron)
Memory: Kingston Savage 8GB (2 x 4GB) DDR3-2133 Memory ($54.00 @ Newegg)
Storage: Kingston HyperX 3K 120GB 2.5" Solid State Drive ($69.99 @ Amazon)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($49.98 @ NCIX US)
Video Card: Sapphire Radeon R9 295X2 8GB Video Card ($669.99 @ Newegg)
Case: Corsair SPEC-02 ATX Mid Tower Case ($59.99 @ Amazon)
Power Supply: Rosewill Capstone 750W 80+ Gold Certified ATX Power Supply ($79.99 @ Amazon)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($14.93 @ Amazon)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($88.94 @ OutletPC)
Total: $1460.84
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-26 18:02 EDT-0400

 

[Eximo]

Those 400W numbers you are quoting are the recommended supply for total system draw. Not what the card itself uses.

An HD4670 supposedly draws 70W under a full load (A PCIe 16x slot can deliver 75W)

Ok lets say i upgrade to a 750W Psu what Graphics card range are we dealing with then

If you put a dual GPU card like a 7990 or R9-295X2 into that system, you would not be able to realize the potential performance in that video card.

That CPU is about 5 generations older then the cards in question.

 

[Wolfshadw]

With a quality 750 watt power supply (Antec HGC, Corsair HX, PC Power and Cooling, Seasonic, XFX), you could run any single GPU solution you wanted, though the performance of the higher end cards would be restricted by your insufficient CPU.

-Wolf sends

 

[Bevs4Days]

cool thx i guess ill just go for that. and im not a fan of duel GPUs because of the fact the draw alot of power and run hot

 

[Epic Sasa]

HD 5450 only runs 20 watts