Radeon R9 290X2 and Radeon R9 390X2 - video card comparison
Radeon R9 290X2
Radeon R9 390X2
Architecture
GCN 2.0 (2013−2017)
GCN (2011−2017)
GPU code name
Hawaii
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Market segment
Desktop
Desktop
Release date
June 2014
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Interface
PCIe 3.0 x16
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Supplementary power connectors
4x 8-pin
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Boost clock speed
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1000 MHz
Core clock speed
1000 MHz
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Floating-point performance
2x 5,632 gflops
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Manufacturing process technology
28 nm
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Number of transistors
6,200 million
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Pipelines / CUDA cores
2816
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Power consumption (TDP)
580 Watt
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Texture fill rate
176.0
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Memory type
GDDR5
512
Maximum RAM amount
4 GB
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Memory bus width
512 Bit
5400 Bit
Memory clock speed
5400 MHz
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Memory bandwidth
345.6 GB/s
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Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
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HDMI
+
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DirectX
12 (12_0)
GDDR5
OpenCL
2.0
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OpenGL
4.6
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Shader Model
6.3
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Vulkan
1.2.131
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