Radeon Vega and Polaris, several unpublished engineering samples revealed

There are a bunch of AMD GPU engineering samples that have been spotted and we'll start with the most recent being the Radeon RX Vega 64 and RX Vega 56 boards. It appears that the Radeon RX Vega 64 engineering graphics card is the same one AMD used at a press event prior to the card's official unveiling at Capsacian & Cream in February 2017.

Vega and Polaris graphics card engineering samples have come to light

The Vega 64 engineering card included an 8 + 6-pin configuration versus the dual 8-pin configuration in the final version. The arrangement of the rest of the components is exactly the same as in the final model. Some cool things about this card are that it has a dual BIOS with a BIOS that retains the 300W TDP limit and the other BIOS that increases the card's maximum TDP to 600W. But that's not useful at all since the card is locked at a default frequency of 1200 MHz.

We can also see an RX Vega 56 before its final version.

Next up, we have two very similar looking engineering boards for two very different GPUs. The first is a Vega12 GPU, which has been listed on eBay for $ 799.99 and is claimed to be working perfectly.

The AMD Vega12 GPU was designed exclusively for portable platforms and this is the specific board it was tested on. The Vega12 GPU comes with a single 4GB memory package. This specific variant is the Vega12 XLA chip with 1024 SP and not the high-end XTA variant that features 1280 SP. As you can see, even high-end and low-end GPUs need to be tested in various environments and that's why breadboards like this one are equipped with a high-end cooling design and triple 8-pin power connectors.

Visit our guide on graphics cards on the market

And finally, the last card we see is the Radeon RX 560. It appears to be similar to the Vega12, but is very different on closer inspection. The first is the cooling design, which is more subdued compared to that of Vega GPUs. We are also seeing two 8-pin vs 3 power inputs on the board for Vega. The PCB itself is very large and has 5 display outputs

Beneath the main cooler is a copper piece of the CNC heat sink that contacts the VRAM, but not all memory dies make perfect contact with the heatsink. The VRM is a 6 + 2 phase design with the PWM controller IR3567B. There are four memory dies on this board that are Samsung 7Gbps (128-bit / 4GB) modules. This model is also on eBay's list for a price of $ 650.

Now that these models have appeared online, it's a good opportunity for collectors. We will keep you informed.

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