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AMD Radeon R9 280X2
- Graphics Processor
- Tahiti x2
- Cores
- 2048 x2
- TMUs
- 128 x2
- ROPs
- 32 x2
- Memory Size
- 3 GB x2
- Memory Type
- GDDR5
- Bus Width
- 384 bit x2
GPU
Recommended Gaming Resolutions:
- 1920x1080
- 2560x1440
- 3840x2160
The Radeon R9 280X2 was a graphics card by AMD. Built on the 28 nm process, and based on the Tahiti graphics processor, in its Tahiti XTL variant, the card supports DirectX 12. Even though it supports DirectX 12, the feature level is only 11_1, which can be problematic with newer DirectX 12 titles. The Tahiti graphics processor is a large chip with a die area of 352 mm² and 4,313 million transistors. Radeon R9 280X2 combines two graphics processors to increase performance. It features 2048 shading units, 128 texture mapping units, and 32 ROPs, per GPU. AMD has paired 6 GB GDDR5 memory with the Radeon R9 280X2, which are connected using a 384-bit memory interface per GPU (each GPU manages 3,072 MB). The GPU is operating at a frequency of 950 MHz, which can be boosted up to 1000 MHz, memory is running at 1500 MHz (6 Gbps effective).
Being a dual-slot card, the AMD Radeon R9 280X2 draws power from 3x 8-pin power connectors, with power draw rated at 375 W maximum. Display outputs include: 6x mini-DisplayPort 1.2. Radeon R9 280X2 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 315 mm in length, and features a dual-slot cooling solution.
Being a dual-slot card, the AMD Radeon R9 280X2 draws power from 3x 8-pin power connectors, with power draw rated at 375 W maximum. Display outputs include: 6x mini-DisplayPort 1.2. Radeon R9 280X2 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. The card measures 315 mm in length, and features a dual-slot cooling solution.
Graphics Processor
Graphics Card
- Release Date
- Unknown
- Generation
-
Volcanic Islands
(R9 200)
- Predecessor
- Sea Islands
- Successor
- Pirate Islands
- Production
- End-of-life
- Bus Interface
- PCIe 3.0 x16
Relative Performance
Based on TPU review data: "Performance Summary" at 1920x1080, 4K for 2080 Ti and faster.
Performance estimated based on architecture, shader count and clocks.
Clock Speeds
- Base Clock
- 950 MHz
- Boost Clock
- 1000 MHz
- Memory Clock
-
1500 MHz
6 Gbps effective
Memory
- Memory Size
- 3 GB
- Memory Type
- GDDR5
- Memory Bus
- 384 bit
- Bandwidth
- 288.0 GB/s
Render Config
- Shading Units
- 2048
- TMUs
- 128
- ROPs
- 32
- Compute Units
- 32
- L1 Cache
- 16 KB (per CU)
- L2 Cache
- 768 KB
Theoretical Performance
- Pixel Rate
- 32.00 GPixel/s
- Texture Rate
- 128.0 GTexel/s
- FP32 (float)
- 4.096 TFLOPS
- FP64 (double)
- 1,024 GFLOPS (1:4)
Board Design
- Slot Width
- Dual-slot
- Length
- 315 mm
12.4 inches
- TDP
- 375 W
- Suggested PSU
- 750 W
- Outputs
- 6x mini-DisplayPort 1.2
- Power Connectors
- 3x 8-pin
- Board Number
- C386
Graphics Features
- DirectX
- 12 (11_1)
- OpenGL
- 4.6
- OpenCL
- 2.1 (1.2)
- Vulkan
- 1.2.170
- Shader Model
- 6.5 (5.1)
Card Notes
| Rebranded HD 7990 |
Tahiti GPU Notes
| Generation: Southern Islands Desktop Variant: New Zealand / Malta Graphics/Compute: GFX6 (gfx600) Display Core Engine: 6.0 Unified Video Decoder: 3.2 Video Compression Engine: 1.0 CLRX: GCN 1.0 Exact Transistor Count: 4,312,711,873 Latest Drivers: Windows XP / 8: Catalyst Software Suite 14.4 Windows Vista : Catalyst Software Suite 13.12 Windows 7: 32-bit: Radeon Software: Adrenalin Edition 18.9.3 64-bit: AMD Software: Adrenalin Edition 22.6.1 Windows 8.1: 32-bit: Radeon Software: Crimson ReLive Edition 16.12.2 / 17.1.2 64-bit: Radeon Software: Crimson ReLive Edition 17.4.4 / 17.7.1 Windows 10: 32-bit: Radeon Software: Adrenalin Edition 18.9.3 64-bit: AMD Software: Adrenalin Edition 22.6.1 |
Retail boards based on this design (1)
| Name | GPU Clock | Boost Clock | Memory Clock | Other Changes |
|---|---|---|---|---|
| 1000 MHz | 1100 MHz | 1600 MHz |
Nov 18th, 2024 05:12 EST
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