AMD Polaris 10 to feature 2304 Stream Processors and 8GB GDDR5 memory
In our last story we confirmed that Device ID of 67DF is indeed Polaris 10. However device leaked in Sisoft Ranker is just one of the Device IDs, so it might not be the full chip. My theory is that the core could have 40 CUs with 2560 Stream Processors. Meanwhile the chip that got leaked has 36 CUs and 2304 Stream Processors. This mysterious card is also equipped with 8GB GDDR5 memory and 256-bit wide memory bus.
It terms of clocks the GPU is clocked at 800 MHz and memory at effective 6 GHz (1500 MHz). This gives us quite rather poor bandwidth of 192 GB/s, however we don’t know if this is GDDR5X or not.
The specifications are definitely not high-end, but let’s not forget this just one of the Polaris 10 SKUs, so we don’t know if specs are modified for lower model.
I find it hard to believe that AMD would achieve two times more efficient Stream Processor going from GCN 3.0 (Fiji) to GCN 4.0 (Polaris 10), so I doubt this card could beat Fury X. Judging from memory capacity, we might be looking at Hawaii replacement with new 8GB solution. Whether this is the Radeon R9 490X or R9 480X is something we can’t be sure just yet.
So to sum up, this leaks shows Polaris 10 GPU for 100%, we just don’t know if this is the full chip.
| AMD Polaris Specifications (To Be Confirmed) | |||
|---|---|---|---|
| March 24th 2016 | AMD Polaris 10 (full?) | AMD Polaris 10 (67DF) | AMD Polaris 11 (67FF) |
| GPU | Polaris 10 / Ellesmere | Polaris 10 / Ellesmere | Polaris 11 / Baffin |
| Fabrication Process | 14nm FinFET | 14nm FinFET | 14nm FinFET |
| Compute Units | 40 | 36 | ? |
| Stream Processors | 2560 | 2304 | ? |
| TMUs | ? | ? | ? |
| ROPs | ? | ? | ? |
| Computing Power | ~4.0 TFLOPs | ~3.7 TFLOPs | ? |
| Core clock | ~1000 MHz | ~800 MHz | ~1000 MHz |
| Memory Clock | ~1500 MHz (6 GHz) | ~1500 MHz (6 GHz) | ~1750 MHz (7 GHz) |
| Memory Bus | 256-bit | 256-bit | 128-bit |
| Memory | 8GB GDDR5 | 8GB GDDR5 | 4GB GDDR5 |
| Bandwidth | 192 GB/s | 192 GB/s | 112 GB/s |
Many thanks to Cloudfire for the tip!
Source: SiSoft
