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Radeon R9 295X2 Press Deck Leaked

btarunr

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#1
Here are some of the key slides from AMD's press-deck (presentation) for reviewers, for the Radeon R9 295X2 dual-GPU graphics card, ahead of its April 8 launch. The slides confirm specifications that surfaced earlier this week, which describe the card as bearing the codename "Vesuvius," having two 28 nm "Hawaii" GPUs, and all 2,816 stream processors on the chips being enabled, next to 176 TMUs, 64 ROPs, and 512-bit wide GDDR5 memory interfaces. Two such chips are wired to a PLX PEX8747 PCI-Express 3.0 x48 bridge chip. There's a total of 8 GB of memory on board, 4 GB per GPU. Lastly, clock speeds are revealed. The GPUs are clocked as high as 1018 MHz, and memory at 5.00 GHz (GDDR5-effective). The total memory bandwidth of the card is hence 640 GB/s.

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#2
Beast of a card! Certainly offers more kit than nVidia's offering
 
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#4
Why oh why would you try to cheaply imitate the styling of your competitor? This card looks like a Chinese knockoff of a high end Nvidia card. It's so bizarre they'd go that direction, look at the final product, and then just not see the glaring problem there. I mean they even have the glowing side logo.... It's like they decided grey metal and rivets must be part of a new DX standard.
 
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#6
What a fugly shroud and fan, I would much prefer the original R9 styled cooler instead of this cheapy plastic looking LED fan.
 

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#7
Sounds like these gpu hybrid coolers are becoming increasingly popular, but I wouldn't want to bother with it.

This card deserves a full water block. :D
 
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#8
They should sell these cards with no cooler for cheap.
 
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#11
Looking at the numbers

295x2 - 11.5 TFLOPS
Titan Z = 8 TFLOPS
What a joke.
Point #1 : 295X2 is based on continuous operation at 1018MHz (and the actual number would be 11.467*) - how likely is that scenario
And since you're cherry picking a bullet point in isolation, how about this one:
Point #2 : FP64.....295X2 : 1.433 TFlops (AMD artificially limits double precision to 1/8 of single precision with Radeon Hawaii) -and which is actually ~25% less than the HD 7990) and 54% less than Titan Z if the Z's 8TF FP32 is correct
* (1018 * 5632 * 2)
 
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#12


I love posting this pic :)
 

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#13
Overdrawing power from two 8pins is less than stellar. I'm aware most psu's from reputable brands can handle it, but it's outside specs. Would it really have hurt just banging on a third 8 pin just for safety? It's not like the people who buy this won't have one available.
 
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#14
Overdrawing power from two 8pins is less than stellar. I'm aware most psu's from reputable brands can handle it, but it's outside specs. Would it really have hurt just banging on a third 8 pin just for safety? It's not like the people who buy this won't have one available.
PCIE 3 slot can give 300w... why mobo needs multiple 8pins.
 
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#15
PCIE 3 slot can give 300w... why mobo needs multiple 8pins.
PCIe 3.0 Electromechanical.
PCIe slot = 75 watts
PCIe 2x4 = 150 watts

75 + 150 + 150 = 375 watts

The PEG cables can be told to go above and beyond the official specification but not the slot.

75W + 300W + 150W or 300W + 300W with no power coming from the slot.
 

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#16
PCIE 3 slot can give 300w... why mobo needs multiple 8pins.
The total board power of the card is rated at 500W, and so AMD is obviously over-drawing power from each of the two 8-pin power connectors
Says in the OP it's going to be overdrawing.
 
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#17
PCIe 3.0 Electromechanical.
PCIe slot = 75 watts
PCIe 2x4 = 150 watts

75 + 150 + 150 = 375 watts

The PEG cables can be told to go above and beyond the official specification but not the slot.

75W + 300W + 150W or 300W + 300W with no power coming from the slot.
So it seems... looks like 300w is still max for pcie spec... dual 8pin config not official lol ... Thanks for the correction.
 
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#18
PCIe 3.0 Electromechanical.
PCIe slot = 75 watts
PCIe 2x4 = 150 watts

75 + 150 + 150 = 375 watts

The PEG cables can be told to go above and beyond the official specification but not the slot.

75W + 300W + 150W or 300W + 300W with no power coming from the slot.
Well, that sounds fine and dandy.......what about AMD's own range of 900 (990FX/990X/970) series chipset boards? They aren't specced for PCI-E 3.0 operation are they? That being the case then an overdraw past 75W via the slot isn't a given.
 
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#19
Well, that sounds fine and dandy.......what about AMD's own range of 900 (990FX/990X/970) series chipset boards? They aren't specced for PCI-E 3.0 operation are they? That being the case then an overdraw past 75W via the slot isn't a given.
The PCIe Electromechanical specification is forward and backwards compatible.
 
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#20
Would it really have hurt just banging on a third 8 pin just for safety? It's not like the people who buy this won't have one available.
Other than thumbing its nose at the PCI-SIG, it might have been a tight fit to accommodate a third power plug. According to the slide deck, the card is 305-307mm long. I believe the PCI-SIG limit is 312mm.
 

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#21
Well, that sounds fine and dandy.......what about AMD's own range of 900 (990FX/990X/970) series chipset boards? They aren't specced for PCI-E 3.0 operation are they? That being the case then an overdraw past 75W via the slot isn't a given.
Kaveri/FM2+ does though right?
 
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#22

btarunr

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#23
NextFX CPUs, which could be FM2+ chips with four Steamroller modules, no IGP, but integrated PCIe gen 3 root complex, should overcome that. Current AMD 7-series APUs support PCIe gen 3.
 
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#24
Would've loved to see it as a 3x8 pin just in case someone wants to abuse it for overclocking, 2x8 doesn't leave much room for power :(
 
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#25
I'm glad AMD came out with this card although if I were ever to buy one I'd ditch that hybrid cooler and build a custom loop. I don't like how it looks like but if it performs well and is priced right then it's a win.