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AMD Radeon R9 390 X2
- Graphics Processor
- Grenada x2
- Cores
- 2560 x2
- TMUs
- 160 x2
- ROPs
- 64 x2
- Memory Size
- 8 GB x2
- Memory Type
- GDDR5
- Bus Width
- 512 bit x2
GPU
I/O
Top
Bottom
Rear
Back
Recommended Gaming Resolutions:
- 1920x1080
- 2560x1440
- 3840x2160
The Radeon R9 390 X2 was an enthusiast-class graphics card by AMD, launched on September 3rd, 2015. Built on the 28 nm process, and based on the Grenada graphics processor, in its Grenada PRO variant, the card supports DirectX 12. This ensures that all modern games will run on Radeon R9 390 X2. The Grenada graphics processor is a large chip with a die area of 438 mm² and 6,200 million transistors. Unlike the fully unlocked Radeon R9 390X, which uses the same GPU but has all 2816 shaders enabled, AMD has disabled some shading units on the Radeon R9 390 X2 to reach the product's target shader count. Radeon R9 390 X2 combines two graphics processors to increase performance. It features 2560 shading units, 160 texture mapping units, and 64 ROPs, per GPU. AMD has paired 16 GB GDDR5 memory with the Radeon R9 390 X2, which are connected using a 512-bit memory interface per GPU (each GPU manages 8,192 MB). The GPU is operating at a frequency of 1000 MHz, memory is running at 1350 MHz (5.4 Gbps effective).
Being a triple-slot card, the AMD Radeon R9 390 X2 draws power from 4x 8-pin power connectors, with power draw rated at 580 W maximum. Display outputs include: 2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2. Radeon R9 390 X2 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. Its price at launch was 1399 US Dollars.
Being a triple-slot card, the AMD Radeon R9 390 X2 draws power from 4x 8-pin power connectors, with power draw rated at 580 W maximum. Display outputs include: 2x DVI, 1x HDMI 1.4a, 1x DisplayPort 1.2. Radeon R9 390 X2 is connected to the rest of the system using a PCI-Express 3.0 x16 interface. Its price at launch was 1399 US Dollars.
Graphics Processor
Graphics Card
- Release Date
- Sep 3rd, 2015
- Generation
-
Pirate Islands
(R9 300)
- Predecessor
- Volcanic Islands
- Successor
- Arctic Islands
- Production
- End-of-life
- Launch Price
- 1,399 USD
- Bus Interface
- PCIe 3.0 x16
- Reviews
- 35 in our database
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
- GPU Clock
- 1000 MHz
- Memory Clock
-
1350 MHz
5.4 Gbps effective
Memory
- Memory Size
- 8 GB
- Memory Type
- GDDR5
- Memory Bus
- 512 bit
- Bandwidth
- 345.6 GB/s
Render Config
- Shading Units
- 2560
- TMUs
- 160
- ROPs
- 64
- Compute Units
- 40
- L1 Cache
- 16 KB (per CU)
- L2 Cache
- 1024 KB
Theoretical Performance
- Pixel Rate
- 64.00 GPixel/s
- Texture Rate
- 160.0 GTexel/s
- FP32 (float)
- 5.120 TFLOPS
- FP64 (double)
- 640.0 GFLOPS (1:8)
Board Design
- Slot Width
- Triple-slot
- TDP
- 580 W
- Suggested PSU
- 950 W
- Outputs
- 2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
- Power Connectors
- 4x 8-pin
- Board Number
- C671
Graphics Features
- DirectX
- 12 (12_0)
- OpenGL
- 4.6
- OpenCL
- 2.1
- Vulkan
- 1.2.170
- Shader Model
- 6.5
Grenada GPU Notes
| Generation: Volcanic Islands Desktop Variant: Hawaii / Vesuvius Graphics/Compute: GFX7 (gfx702) Display Core Engine: 8.5 Unified Video Decoder: 4.2 Video Compression Engine: 2.0 System DMA: 1.0.0 CLRX: GCN 1.1.0 |
Retail boards based on this design (1)
| Name | GPU Clock | Memory Clock | Other Changes |
|---|---|---|---|
| 1000 MHz | 1350 MHz |
Apr 25th, 2024 11:27 EDT
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