Solved specs for new graphics card on older motherboard question

August 24, 2015 at 14:34:13
Specs: Win7 64x prof, Intel core 2 Duo E8200 / 4Gb I think DDR2
I now have my pc round at my new house, first time switching on for 3 years i got the blue screen so a fresh install got me going

The graphics card is a gtx 220 and only has vga and the other connection that looks like vga but wider ( i cant remember the name of it ) , i recently bought a tecknica 40" tv and as expected the display even after updating the nvidia drivers is soft and wobbly

What i want is a new graphics card that is hdmi, pciexpress x16 and 2gb memory and about 1ghz clock speed.

I have found one i like the look of, a Geforce GT740 from msi and the specs are here...

Chipset Manufacturer:NVIDIAChipset
Model Name:GeForce GTXChipset
Model Number:740
Chip Clock:1006 MHz
Cooling System:2 Slot - Fan Cooler
Memory Size:2048
Clock:1782 MHz
Memory Type:DDR2
VGA Port:1 x 15-pin D-Sub
Video Card Bus Type:PCI Express
Video Card Bus Version:3.0 x16
HDMI Port:1 x HDMI
DVI Port:1 x DVI
Maximum Resolution:2560 x 1600 Pixels

looks good but i cant remember the stats for the motherboard, i think its an asus p5k but not 100%, i know its pciexpress x16 for the graphics but what does the 3.0 x16 mean and would it still work if the motherboard only supports x16

Also the memory on that card is DDR2 designation DDR3? What if the board was only designed for DDR1?

So is this card too advanced and wont work or is it ok to use and will only be slowed down a little by possible backwards compatibility ?

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August 24, 2015 at 17:25:03
✔ Best Answer
Motherboard memory & graphics card memory are 2 separate things. Generally, the best video cards these days use GDDR5 memory. The one you selected uses DDR3 (not even GDDR3), so it only has 35% of the memory bandwidth of GDDR5. They used 2GB of cheap/slow DDR3 RAM to sucker people in.

The 3.0 x16 means 3rd generation. It should be backward compatible with 1.x & 2.0. However, the graphics throughput may be limited by the older slot. Make sure you have a decent power supply to be able to handle the power requirements of a higher end graphics card.

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August 25, 2015 at 07:17:08
Thanks riider so all the stats between the 740 gddr5 and standard 740 are the same apart from this section..
Memory Clock 5.0 Gbps 1.8 Gbps

Standard Memory Config 1024 MB 2048 MB

Memory Interface GDDR5 DDR3

Memory Bandwidth (GB/sec) 80 28.

so the gddr5 has a far superior memory clock which i assume is the speed that the memory reads and re writes memory but the overall memory is smaller by 50% compared to the ddr3, kindof like a smaller file cabinet but a secretary on speed so more info recieved and retrieved :)

And with the memory being separate from the motherboards memory i take it that the gddr5 will still be better to use than ddr3 plugged into a 1st gen pci express without being throttled back to the same stats as ddr3?

the power supply should be all good its a 700w psu


i think I've found one, gddr5 1gb pci express 3.0 x16 and from what ive read elsewhere to someone elses question it looks like pci 2.0 x16 on a pci 1.0 x16 is only about 5-10% slower, so im only going to be losing say 10-15% of the 3.0 x16 by plugging into a 1.0 x16

At some point in the future when i upgrade the cpu and mobo they will catch up ;)

message edited by piemunch

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August 25, 2015 at 14:03:35
GDDR5 is vastly superior. On that speed card, more than 1GB RAM is not going to make any difference but the speed of it will.
If you are gaming, look to at least the GTX750 or GTX750Ti if you can swing it, but just to run a larger monitor at better resolution for say watching video, it is probably not necessary.

You have to be a little bit crazy to keep you from going insane.

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August 26, 2015 at 01:35:59
Thanks Fingers ive made the purchase, its mostly for watching films but ill be playing a few games also, nothing mental on graphics power but for the price sub £80 i picked that one to still be good in 5 years

I hate turning detail shadows and effects down so that card should be good to play all games i have on max

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