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So I was lucky enough to pick one of theses up for 300 bucks. It was barely used by a company selling them off so I snagged it. I am currently running a Radeon HD 7950 Vapor-X, can I assume that the GTX 590 is more powerful? Yes I know about micro-shutter and all, but I was planning to actually get 2x660's b/c my HD 7950 for some strange reason cannot pass 1050/1450 on all games (metro 2033/planetside 2 being the issues) w/o throwing the driver. AMD's unless you can get a good OC out of them cannot keep up with the fast GTX 600 series b/c their core/memory clocks are alot higher.

This brings me to my next point. I am thinking about getting a swift tech 220 and a waterblock for the 590 as it's a NVidia version so the cooling won't be great. My worry is, the 590 pulls alot of power and I have a GX 650W 80+ Bronze PSU, if I overclock I may need a stronger PSU, as I am all ready overclocking my I7-2600K to 4.5GHz.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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Yeah mate, you'll need more than 650W for that.

The HD 7950 @ 1050mhz is already faster than the GTX 680, I don't think that you'll get any improvement by going with the 590 , especially in games where scaling isn't great.

http://www.techpowerup.com/reviews/HIS/HD_7950_X2_Boost/31.html

Also how come you couldn't get more than 1050mhz ? are you over-volting ?

Make sure you're on the standard BIOS as the boost BIOS doesn't support over-volting, this has been confirmed by Sapphire.

If you still can't over-volt, use this BIOS : http://www.techpowerup.com/vgabios/121396/Sapphire.HD7950.3072.120402.html

It supports over-volting + the memory voltage is higher (1.6) on it than the standard vapor-x voltage (1.5) so you should be able to overclock the memory a lot better.

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I've been seeing all the latest benchmarks that unless you can clock a radeon up to a Nvidia card, Nvidia is winning out. But on either bios my card cannot hold above 1050/1450.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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I ran 1125/1400 on 3DMark11 and on standard bios, I can get to 1.3V but it flatlines at 1.3V and won't go any higher. Games like Planetside 2 and Metro 2033 will lock up past 1050/1450.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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I've been seeing all the latest benchmarks that unless you can clock a radeon up to a Nvidia card' date=' Nvidia is winning out. But on either bios my card cannot hold above 1050/1450. [/quote']

What Radeon card and what Nvidia card? you have to be very specific, you can't expect a 7770 @ 1Ghz to out perform a 680 @ 1Ghz, it doesn't work like that at all.

The HD 7950 when overclocked to the max will beat the 670 when it's overclocked the max in fact it will beat a GTX 680 @ stock as well.

And a 7970 overclocked to the max will beat a 680 overclocked the max, this has been proven many times by reviewers including Linus.

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You can see the 7950 clearly outperforms the 670 when both are overclocked, so I'm not sure what you mean when you say "unless you can clock a radeon up to a Nvidia card, Nvidia is winning out"

9u3cbq.jpg

From Linus's BF3 graphics showdown.

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But Linus was able to clock his HD 7950 to about 1200/1600 and I cannot come anywhere close.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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But Linus was able to clock his HD 7950 to about 1200/1600 and I cannot come anywhere close.

Also he didn't get 1200/1600, where did you get that from ?

Here are the clocks he used : 1100/1575

You will easily get that with a bit of voltage tuning.

https://docs.google.com/spreadsheet/ccc?key=0AmLKAgEko3SAdHFtby1jNTFvaTF2UHhaMzdMQ0FNM2c#gid=0

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But Linus was able to clock his HD 7950 to about 1200/1600 and I cannot come anywhere close.
Unrecognized file. The most I can overvolt is from 1.25 to 1.3V. It's an issue with the card itself, sapphire built it on an HD 7970 PCB with dual 8-pin connectors but it cannot volt past 1.3V.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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The 590 is barely faster than your overclocked 7950, not worth all the SLI headaches.

You're obviously not over-volting, use the latest Sapphire Trixx to overvolt, if that doesn't work just increase the power limit in the catalyst control center.

You should get 1150mhz easily !

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Vapor-X is voltage locked, anything past 1500 is throws the driver/green screens.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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Vapor-X is voltage locked, anything past 1500 is throws the driver/green screens.
Not trying to start a fight here but the Vapor-x with the 8/8 connector is voltage locked. The max voltage under ccc/afterburner/trixx is 1.3V with a max power of +20%. anything past 1125/1500 green screens at the start of 3dmark11 and anything past 1050/1450 freezes in games.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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Vapor-X is voltage locked, anything past 1500 is throws the driver/green screens.
I'm just trying to help out, did you actually see the voltage adjustment taking effect in GPU-Z ? you can be moving sliders all day without any effect on the actual voltage setting.

People have been recommending the BIOS TechFan@ic posted, try flashing your bios as a last resort.

Could be just a bad chip.

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It seems my memory is the issue. At 1200/1500 atm, but 1100/1525 throws the driver. Yes I am running.gpu-z, it's at 1.297V

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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It seems my memory is the issue. At 1200/1500 atm, but 1100/1525 throws the driver. Yes I am running.gpu-z, it's at 1.297V
Yeah the voltage is set to 1.5v on the RAM with the default BIOS, the BIOS TechFan@ic linked to has it @ 1.6v so you can overclock the RAM a bit more.

It's worth mentioning that your 7950 at those clocks is faster than a 590 ! ^_^

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1200/1500. I am set at 1.3V the max Trixx/MSI allows with +20% power. Here is my results: http://www.3dmark.com/3dm11/6277899 1.297V seems to be the max core voltage, I am forcing constant voltage as recommended. Vram Voltage stays at 1.602 the entire time, always has. Highest Core temp was 61*C and Vram was 59*C with fans set to 10*/10%>100/100%.

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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1200/1500. I am set at 1.3V the max Trixx/MSI allows with +20% power. Here is my results: http://www.3dmark.com/3dm11/6277899 1.297V seems to be the max core voltage, I am forcing constant voltage as recommended. Vram Voltage stays at 1.602 the entire time, always has. Highest Core temp was 61*C and Vram was 59*C with fans set to 10*/10%>100/100%.
I think you should use one overclocking utility at a time to avoid conflicts.

People have reported that Afterburner is the most stable at high overclocks.

So disable CCC AMD overdrive & Sapphire Trixx leave afterburner , you might get better stability in games.

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I am using Trixx atm, removed afterburner, but I need CCC to up the power to 20% as trixx 4.6 doesn't allow that. My ram is running at 1.602V atm, so that bios update won't help?

Summer build: I7-4770K @ 4.5GHz, 4x4GB (Alternative black/red) DDR3 1600MHz, HD 7970GHz Water blocked, XSPC res/pump combo, 2 dual 120MM radiators, Corsair 350D Case, Corsair AX860I 80+ Gold PSU, custom red individually sleeved cables, red tubing w/ silver/chrome compression fittings, 480GB Crucial M500 SSD, ASrock Z87 MATX professional board, and a Corsair Vengeance K60 keyboard.

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1200/1500. I am set at 1.3V the max Trixx/MSI allows with +20% power. Here is my results: http://www.3dmark.com/3dm11/6277899 1.297V seems to be the max core voltage, I am forcing constant voltage as recommended. Vram Voltage stays at 1.602 the entire time, always has. Highest Core temp was 61*C and Vram was 59*C with fans set to 10*/10%>100/100%.
By the way that's an incredible score compared to an overclocked Gigabyte GTX 680 Superclock .

http://youtu.be/UcKWzVkgspc?t=6m56s

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I am using Trixx atm, removed afterburner, but I need CCC to up the power to 20% as trixx 4.6 doesn't allow that. My ram is running at 1.602V atm, so that bios update won't help?
That bios update should at least unlock the voltage in Trixx, backup your current BIOS using GPU-Z then flash using that BIOS, but since you managed an amazing 1200mhz overclocked I don't think you need to really !
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