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AMD Radeon R9 285
- Graphics Processor
- Tonga
- Cores
- 1792
- TMUs
- 112
- ROPs
- 32
- Memory Size
- 2 GB
- Memory Type
- GDDR5
- Bus Width
- 256 bit
GPU
Recommended Gaming Resolutions:
- 1600x900
- 1920x1080
- 2560x1440
The Radeon R9 285 was a performance-segment graphics card by AMD, launched on September 2nd, 2014. Built on the 28 nm process, and based on the Tonga graphics processor, in its Tonga PRO variant, the card supports DirectX 12. This ensures that all modern games will run on Radeon R9 285. The Tonga graphics processor is a large chip with a die area of 366 mm² and 5,000 million transistors. Unlike the fully unlocked Radeon R9 285X, which uses the same GPU but has all 2048 shaders enabled, AMD has disabled some shading units on the Radeon R9 285 to reach the product's target shader count. It features 1792 shading units, 112 texture mapping units, and 32 ROPs. AMD has paired 2,048 MB GDDR5 memory with the Radeon R9 285, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 918 MHz, memory is running at 1375 MHz (5.5 Gbps effective).
Being a dual-slot card, the AMD Radeon R9 285 draws power from 2x 6-pin power connectors, with power draw rated at 190 W maximum. Display outputs include: 2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2. Radeon R9 285 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card's dimensions are 221 mm x 109 mm x 36 mm, and it features a dual-slot cooling solution. Its price at launch was 249 US Dollars.
Being a dual-slot card, the AMD Radeon R9 285 draws power from 2x 6-pin power connectors, with power draw rated at 190 W maximum. Display outputs include: 2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2. Radeon R9 285 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card's dimensions are 221 mm x 109 mm x 36 mm, and it features a dual-slot cooling solution. Its price at launch was 249 US Dollars.
Graphics Processor
Graphics Card
- Release Date
- Sep 2nd, 2014
- Generation
-
Volcanic Islands
(R9 200)
- Predecessor
- Sea Islands
- Successor
- Pirate Islands
- Production
- End-of-life
- Launch Price
- 249 USD
- Bus Interface
- PCIe 3.0 x16
- Reviews
- 59 in our database
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Clock Speeds
- GPU Clock
- 918 MHz
- Memory Clock
-
1375 MHz
5.5 Gbps effective
Memory
- Memory Size
- 2 GB
- Memory Type
- GDDR5
- Memory Bus
- 256 bit
- Bandwidth
- 176.0 GB/s
Render Config
- Shading Units
- 1792
- TMUs
- 112
- ROPs
- 32
- Compute Units
- 28
- L1 Cache
- 16 KB (per CU)
- L2 Cache
- 512 KB
Theoretical Performance
- Pixel Rate
- 29.38 GPixel/s
- Texture Rate
- 102.8 GTexel/s
- FP16 (half)
- 3.290 TFLOPS (1:1)
- FP32 (float)
- 3.290 TFLOPS
- FP64 (double)
- 205.6 GFLOPS (1:16)
Board Design
- Slot Width
- Dual-slot
- Length
- 221 mm
8.7 inches
- Width
- 109 mm
4.3 inches
- Height
- 36 mm
1.4 inches
- TDP
- 190 W
- Suggested PSU
- 450 W
- Outputs
- 2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
- Power Connectors
- 2x 6-pin
- Board Number
- C766
Graphics Features
- DirectX
- 12 (12_0)
- OpenGL
- 4.6
- OpenCL
- 2.1
- Vulkan
- 1.2.170
- Shader Model
- 6.5
Tonga GPU Notes
| Generation: Volcanic Islands Desktop Variant: Antigua Mobile Variant: Amethyst Graphics/Compute: GFX8 (gfx802 / gfx805) Display Core Engine: 10.0 Unified Video Decoder: 5.0 Video Compression Engine: 3.0 System DMA: 3.0.0 CLRX: GCN 1.2.0 |
Retail boards based on this design (14)
| Name | GPU Clock | Memory Clock | Other Changes |
|---|---|---|---|
| 954 MHz | 1375 MHz | 269 mm/10.6 inches | |
| 945 MHz | 1375 MHz | 225 mm/8.9 inches | |
| 973 MHz | 1375 MHz | ||
| 938 MHz | 1375 MHz | 270 mm/10.6 inches | |
| 938 MHz | 1375 MHz | 210 mm/8.3 inches | |
| 973 MHz | 1375 MHz | 263 mm/10.4 inches | |
| 945 MHz | 1375 MHz | 207 mm/8.1 inches | |
| 918 MHz | 1375 MHz | 264 mm/10.4 inches | |
| 965 MHz | 1400 MHz | 264 mm/10.4 inches | |
| 918 MHz | 1375 MHz | 171 mm/6.7 inches, 1x DVI 1x HDMI 2x mini-DisplayPort | |
| 928 MHz | 1375 MHz | 171 mm/6.7 inches, 1x DVI 1x HDMI 2x mini-DisplayPort | |
| 945 MHz | 1375 MHz | 207 mm/8.1 inches | |
| 975 MHz | 1375 MHz | ||
| 918 MHz | 1375 MHz |
Apr 26th, 2024 03:14 EDT
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