The title describes it all. I am having a headache about this, I have looked and looked everywhere and can't seem to find something similar to this.
Firstly I will start with my computer's components:
Case: ANTEC Three Hundred -EC (black, no psu, atx)
PSU: ANTEC Earthwatts (500 watt, atx)
MOBO: GIGA-BYTE GA-P55M-UD2 (P55, 2 x pci-e, raid)
CPU: INTEL Core i7 860 (2.8 ghz, 8 mb, s1156, 95 watt, boxed)
RAM: 2X G.SKILL 4GBRM (4096 mb, 1333 mhz, CL8, 1.5 v, non-ecc, unbuffered, kit of 2)
DVD: NEC DVD ReWriter AD-7240S (24x, sata, black)
HDD: SAMSUNG Spinpoint F3 500gb // Caviar green 1TB // WD Green 2TB
CURRENT GPU: SAPPHIRE RADEON HD5770 (850 mhz, 1024 mb, DDR5, 4800 mhz, 128)
Choice of graphics card:
Club 3D Radeon PokerSeries HD 7870 jokerCard XT Limited
I have read alot of reviews about this one and while they are all postive about how the card performs, they are not happy about the consumption. (210W AVG)
And they reccomend a 700W PSU but I really think that is OVERKILL!!!
So after looking to my PSU I noticed that the 12V rails both can handle 17A which results in 34A together. So when we calculate and do 210W/12V we get 17.5A. Does this mean my PSU will not be able to give 210W to my GPU ? Becouse I am quite sure it will take more than 210W. BUT since this card requires two 6PIN (as in 2 times 17A right ???) I can still use my PSU or not ?
PSU stats: http://www.overclockersonline.net/images/articles/antec/EA500/Large/EW500-2.jpg
I think this is a really nice card, so upgrading from my 5770 to a 7870 tahiti and do some OC will give me a really big bump. I am probably going to add a samsung 840 SSD aswell. Not the PRO since my MOBO will bottleneck it anyway with SATA2.
Conclusion:
This is my story, I THINK my PSU will suffice for the 7870 TAHITI. Maybee just barely. I would like your advise, what would you do ? Buy a new PSU which will be future proof or wait a couple more years when I replace my MOBO & CPU...
I am not sure if my calculations/logic is right, atleast I tried.
Oh and before I forget, I also used the antec PSU calculator ( used 6950 as GPU, and they say it willonly require 430W )
But the one from newegg required me to get a 540W, this is quite confusing!!
Personally I think the PSU calculator from Antec is better since it asks about all the components while the one from newegg doesn't.
Thank you in advance, hopefully we can figure this out together!
Firstly I will start with my computer's components:
Case: ANTEC Three Hundred -EC (black, no psu, atx)
PSU: ANTEC Earthwatts (500 watt, atx)
MOBO: GIGA-BYTE GA-P55M-UD2 (P55, 2 x pci-e, raid)
CPU: INTEL Core i7 860 (2.8 ghz, 8 mb, s1156, 95 watt, boxed)
RAM: 2X G.SKILL 4GBRM (4096 mb, 1333 mhz, CL8, 1.5 v, non-ecc, unbuffered, kit of 2)
DVD: NEC DVD ReWriter AD-7240S (24x, sata, black)
HDD: SAMSUNG Spinpoint F3 500gb // Caviar green 1TB // WD Green 2TB
CURRENT GPU: SAPPHIRE RADEON HD5770 (850 mhz, 1024 mb, DDR5, 4800 mhz, 128)
Choice of graphics card:
Club 3D Radeon PokerSeries HD 7870 jokerCard XT Limited
I have read alot of reviews about this one and while they are all postive about how the card performs, they are not happy about the consumption. (210W AVG)
And they reccomend a 700W PSU but I really think that is OVERKILL!!!
So after looking to my PSU I noticed that the 12V rails both can handle 17A which results in 34A together. So when we calculate and do 210W/12V we get 17.5A. Does this mean my PSU will not be able to give 210W to my GPU ? Becouse I am quite sure it will take more than 210W. BUT since this card requires two 6PIN (as in 2 times 17A right ???) I can still use my PSU or not ?
PSU stats: http://www.overclockersonline.net/images/articles/antec/EA500/Large/EW500-2.jpg
I think this is a really nice card, so upgrading from my 5770 to a 7870 tahiti and do some OC will give me a really big bump. I am probably going to add a samsung 840 SSD aswell. Not the PRO since my MOBO will bottleneck it anyway with SATA2.
Conclusion:
This is my story, I THINK my PSU will suffice for the 7870 TAHITI. Maybee just barely. I would like your advise, what would you do ? Buy a new PSU which will be future proof or wait a couple more years when I replace my MOBO & CPU...
I am not sure if my calculations/logic is right, atleast I tried.
Oh and before I forget, I also used the antec PSU calculator ( used 6950 as GPU, and they say it willonly require 430W )
But the one from newegg required me to get a 540W, this is quite confusing!!
Personally I think the PSU calculator from Antec is better since it asks about all the components while the one from newegg doesn't.
Thank you in advance, hopefully we can figure this out together!
Facebook
Twitter
Instagram