AMD Radeon R9 290X vs AMD Radeon R9 390 X2

Table of Contents

Graphics Processor

GPU model Hawaii Grenada
GPU variant Hawaii XT (215-0852000) Grenada PRO (215-0880030)
Architecture GCN 2.0 GCN 2.0
Foundry TSMC TSMC
Manufacturing process 28 nm 28 nm
Number of transistors 6,200 million 6,200 million
Die size 438 mm² 438 mm²

Graphics Card

Release date Oct 24th, 2013 Sep 3rd, 2015
Generation Volcanic Islands Pirate Islands
Production End-of-life End-of-life
Launch price 549 USD 1,399 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 147 in our database
Predecessor Sea Islands Volcanic Islands
Successor Pirate Islands Arctic Islands

Clocks

GPU clock 1000 MHz 1000 MHz
Memory clock 1250 MHz 5 Gbps effective 1350 MHz 5.4 Gbps effective

Memory Configuration

Memory size 4 GB 8 GB
Memory type GDDR5 GDDR5
Memory bus width 512 bit 512 bit
Bandwidth 320.0 GB/s 345.6 GB/s

Render Configuration

Shading units 2816 2560
TMUs 176 160
ROPs 64 64
Compute units 44 40
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 1024 KB 1024 KB

Performance

Pixel rate 64.00 GPixel/s 64.00 GPixel/s
Texture rate 176.0 GTexel/s 160.0 GTexel/s
FP32 (float) performance 5.632 TFLOPS 5.120 TFLOPS
FP64 (double) performance 704.0 GFLOPS (1:8) 640.0 GFLOPS (1:8)

Dimensions & Outputs

Slot width Dual-slot Triple-slot
Length 275 mm 10.8 inches
Width 109 mm 4.3 inches
Height 36 mm 1.4 inches
TDP 290 W 580 W
Suggested PSU 600 W 950 W
Outputs 2x DVI1x HDMI1x DisplayPort 2x DVI1x HDMI1x DisplayPort
Power connectors 1x 6-pin + 1x 8-pin 4x 8-pin
Board number C671-57 C671

API Support & Features

DirectX 12 (12_0) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.0 2.0
Vulkan 1.2 1.2
Shader model 6.3 6.3

Other Features

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