AMD Radeon Pro Duo Launches April 26th
Let me first state that the release date is a rumor that popped up over the weekend, not a fact. According to sources at HardwareBattle, AMD is to launch the Dual FIJI GPUs based Radeon Pro Duo in roughly three weeks time. AMD recently announced the product on its Capsaicin-event at GDC 2016.
The Radeon Duo Pro with its two FIJI GPUs are tied towards a thick 120mm liquid cooling solution. The product will offer 16 teraflops of performance, indicating two fully enabled Fiji XT GPUs. AMD Radeon Pro Duo (dual-GPU Fiji) was developed under code-name Gemini would have 8 GB HBM1 graphics memory with a whopping 8192 stream processors.
The specs below are not final yet based up-on assumptions (they should be pretty conclusive though). The AMD Radeon Pro Duo is expected to sell at a SEP of $1499 USD.
Radeon Pro Duo | Radeon R9 Fury X | Radeon R9 Nano | Radeon R9 390X | |
Fabrication Process | 28nm | 28nm | 28nm | 28nm |
GPU | Fiji XT x2 | Fiji XT | Fiji XT | Hawaii / Grenada |
Streaming Processors | 2x 4096 | 4096 | 4096 | 2816 |
Graphics memory | 2x 4 GB HBM | 4 GB HBM | 4 GB HBM | 8 GB GDDR5 |
Memory Clock | up-to 500 MHz / 1.0 Gbps | up-to 500 MHz / 1.0 Gbps | up-to 500 MHz / 1.0 Gbps | 6.0 Gbps |
Core Clock | 1050 MHz | 1050 MHz | up-to 1000 MHz | 1050 MHz |
Memory Bandwidth | up-to 512 GB/s | up-to 512 GB/s | up-to 512 GB/s | 384 GB/s |
Power Connectors | 3 x 8-pin | 2 x 8-pin | 1 x 8-pin | 1 x 6-pin - 1 x 8-pin |
Form Factor | Full Height, Dual slot | Full Height, Dual slot | Full Height, Dual slot | Full Height, Dual slot |
Freesync | Yes | Yes | Yes | Yes |
DirectX 12 Support | Yes | Yes | Yes | Yes |
One Radeon Fury X pushes close to 8.6 TFLOPS of performance, the dual-GPU version offers over 16 TFLOPs of single precision performance. And yes a dual-GPU Fiji would have 8 GB HBM1 graphics memory with 8192 stream processors. The product is rated to have a 250 Watt TDP and is powered by three 8-pin PEG connectors.
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Senior Member
Posts: 345
Joined: 2007-07-25
Nice, I swapped out my old HD6990 (2 x HD6970's on 1 card) for my Fury X a little while back. I never had any problem with crossfire. (except Watch Dogs) I'd have no hesitation getting another twin GPU AMD card.
Senior Member
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I see they still advertise these dual cards as having "8GB vram", isn't it the same as with nvidia's SLI where they only use the 4GB or is it different with xfire? And if so, wouldn't all this horsepower be gimped by only having 4GB vram or is this not an issue with HBM?
Either way, it's an impressive beast, I expected that they would at least gimp the clocks a bit.
Junior Member
Posts: 6
Joined: 2016-04-10
I see they still advertise these dual cards as having "8GB vram", isn't it the same as with nvidia's SLI where they only use the 4GB or is it different with xfire? And if so, wouldn't all this horsepower be gimped by only having 4GB vram or is this not an issue with HBM?
Either way, it's an impressive beast, I expected that they would at least gimp the clocks a bit.
That's the hard thing to figure out, since standard AFR in DX11 needs exact copies of all data for both GPU's, so the 8 GB on this card acts like a 4 GB card in practical terms in that situation, but in DX 12 there is a feature that allows specific GPU's to process specific workloads and exact copies of all data no longer need to be kept in memory for each GPU then.
We'll still be stuck in DX11 land for a long time though.....

Senior Member
Posts: 14013
Joined: 2004-05-16
That's the hard thing to figure out, since standard AFR in DX11 needs exact copies of all data for both GPU's, so the 8 GB on this card acts like a 4 GB card in practical terms in that situation, but in DX 12 there is a feature that allows specific GPU's to process specific workloads and exact copies of all data no longer need to be kept in memory for each GPU then.
We'll still be stuck in DX11 land for a long time though.....

This is true but in most scenes I imagine both GPU's will have the exact same thing in memory anyway, even when they are split. It's still better obviously, but lots of people think it will just double the free memory. Memory in use will nearly double as well.
Junior Member
Posts: 6
Joined: 2016-04-10
Given that there are so many ( Cough ) DX12 games to chose from, I wouldn't call any current card outdated to be honest.....
A pair of these Radeon pro duo allows some nice Quad crossfire insanity which besides being extremely expensive ( 3000$ ) is still made up of 4 Fiji GPU's working together which when combined totals 2 terabyte /sec of memory bandwidth and 32 teraflop / sec of single precision math which is what is used in games, 1024 texture units and 256 rops, which is a crazy high amount of combined GPU power that makes any game running at 4K resolution a joke as far as GPU load is concerned......It isn't enough to stress the GPU's, period.....LOL.
So when you add that GPU firepower, and that it only takes up 2 PCI-e slots while leaving the rest alone for a nice sound card, or PCI-e SSD I don't think the owner will have to compromise their gaming anywhere at any setting and anytime soon.....