AMD Radeon R9 285 smiles for camera
Radeon R9 285 is essentially R9 270X with R9 280 performance. This card is allegedly equipped with Tonga PRO, thus we shall expect R9 285X with Tonga XT sometime soon. R9 285 is a small card, so if you expect triple-fan coolers, that is not likely to happen at launch (but some AIBs will surely try it). Either way, we heard that R9 285 will even be available in mini-ITX form factor.
Radeon R9 285 has 2GB GDDR5 memory across 256b interface. That’s all we know for sure. The core clock is reported at 918 MHz and memory clock is 1375 MHz (5500 MHz effective), that said we have 176 GB/s bandwidth. Normally I would at least put speculated specs here, but since we are not yet sure if Tonga PRO is a fact, I decided to wait for something more solid. The full Tonga chip has the same number of unified cores as Tahiti (2048), the only question is, how many cores does R9 285 have?
All AIB cards have the same display output configuration: two DVIs, one HDMI and one DisplayPort.
The fact that first AIB cards are starting to pop up, R9 285 launch should happen somewhere in the next two weeks.
| AMD Radeon R9 280 Series (August 2014) | |||
|---|---|---|---|
| Radeon R9 280 | Radeon R9 285 | Radeon R9 280X | |
| GPU Codename | Tahiti PRO | Tonga PRO | Tahiti XT |
| Unified Cores | 1792 | ? | 2048 |
| TMUs | 112 | ? | 128 |
| ROPs | 32 | ? | 32 |
| Base Clock | 827 MHz | 918 MHz | 850 MHz |
| Boost Clock | 933 MHz | ? | 1000 MHz |
| Memory Clock | 1250 MHz | 1375 MHz | 1500 MHz |
| Memory | 3GB GDDR5 | 2GB GDDR5 | 3GB GDDR5 |
| Memory Bus | 384-bit | 256-bit | 384-bit |
| Bandwidth | 240 GB/s | 176 GB/s | 288 GB/s |
| Power Connectors | 6-pin + 6-pin | 6-pin + 6-pin | 8-pin + 6-pin |
| TDP | 200W | ? | 250W |
| Launch Date | March 2014 | August 2014 | October 2013 |
| MSRP | $279 | ? | $299 |
Sapphire Radeon R9 285 Dual-X
XFX Radeon R9 285
HIS Radeon R9 285 IceQX2 Mini
Last but not least, Radeon R9 285 will be the third card to utilize XDMA Crossfire, there are no CF fingers on these cards.
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