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Two AMD Radeon Navi graphics cards suddenly appeared on the 3DMark and AOTS benchmarks. Navi-based GPU variants were found by TUM_APISAK and it seems that we also have some preliminary specifications for what appears to be technical samples run in test labs.
AMD Radeon Navi GPUs appear on 3DMark and AOTS benchmarks with first specifications
Both variants of the AMD Navi graphics processor are not identical because they have a different device ID. The variant that has the specifications shown on 3DMark is the "731F: C1" and comes with a clock speed of 1000 MHz and 8 GB of memory that is clocked at 1250 MHz. What's interesting about this memory clock is that if we assume it's based on the GDDR5, that would translate to 5 GHz, which is pretty low for a 256-bit variant that this map seems to be.
This is where I tend to believe that the card actually uses a GDDR6 memory interface with an effective clock speed of 10 GHz, which is more likely. This would give the card a total bandwidth of 320 GB / s, higher than that of AMD's current flagship product, the RX 590, which offers a bandwidth of 256 GB / s. No other details for this GPU are mentioned, nor is the performance, but it is clear that it is a very early sample and, like all other GPUs of AMD we have seen in the past, the final clocks of the GPU would be greater than 1 GHz.
The other AMD Radeon Navi variant is "7310: 00" and this variant has no specifications mentioned at the moment, but it has been identified in the AOTS reference. The same variant also appeared in GFXbench a few months ago and marked 1520 images (23.6 frames per second) in the reference section of the Aztec ruins and 3404 images or 54.9 frames per second in the reference section of Manhattan.
Now, if we compare the scores to those of the competition, we will note that the Manhattan landmark reaches a limit of 60 frames per second on all maps and even as the old version of the GTX 960, that the AMD variant Navi is not able to do, seems to be a low party. The map performance is also lower than the Aztec Ruins benchmark, but we can still consider this test as a very early sample test and probably as a non-optimized driver. Here are some graphical performance comparisons for this specific Navi variant as compared to other maps:
AMD Radeon Navi graphics cards: that's what to expect
We know some information about the features that AMD Navi GPUs would support, such as Ray Tracing, which has recently been confirmed as the next generation of Sony and Microsoft consoles using AMD Navi 10 GPUs and Ryzen processors based on on Zen 2. There was also talk of introducing Variable Rate Shading on Navi GPUs as AMD's proposal to further modernize their Radeon graphics card for the consumer market.
Navi might be AMD's latest GCN (Graphics Core Next) DNA-based GPU architecture. The AMD Linux driver confirmed that Navi relied on GCN and was codenamed GFX1010, while Vega was called GFX900. Major improvements would be made to Navi's architecture in terms of CPI and efficiency at 7nm would be a showcase of the new maps, providing more drastic results compared to the Radeon VII which was also based at 7nm but was simply a reduced Vega 10 graphics card (Vega 20).
We've already seen a printed circuit board leak for a future Navi-based GPU with GDDR6 memory and some of the supposed specifications listed below, but one thing is for sure: Navi-based Radeon GPUs will replace existing traditional maps while Radeon VII will continue as AMD's flagship product until the introduction of a high-end Navi card, which is currently being discussed for 2020.
Alleged specifications of the AMD Radeon RX 3000 Series
| Graphic card | GPU | Units of calculation | VRAM | TDP | Performance class (Competition) |
Price (RUMOURE) |
|---|---|---|---|---|---|---|
| RX 3090 XT | Navi 20 | 64 | – | 225W | Radeon VII + 10% | US $ 500 |
| RX 3090 | Navi 20 | 60 | – | 180W | ~ Radeon VII | US $ 430 |
| RX 3080 XT | Navi 10 | 56 | – | 190W | ~ RTX 2070 | US $ 330 |
| RX 3080 | Navi 10 | 52 | 8GB GDDR6 | 175W | Vega 64 + 10% | US $ 280 |
| RX 3070 XT | Navi 10 | 48 | – | 160W | Vega 64 | US $ 250 |
| RX 3070 | Navi 12 | 40 | 8GB GDDR6 | 130W | Vega 56 | US $ 200 |
| RX 3060 | Navi 12 | 32 | 4GB GDDR6 | 75W | RX 580 | US $ 140 |
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