AMD Radeon R9 270X vs AMD Radeon RX 580

Graphics Processor

GPU model Curacao Polaris 20
GPU variant Curacao XT (215-0848004) Polaris 20 XTX (215-0910038)
Architecture GCN 1.0 GCN 4.0
Foundry TSMC GlobalFoundries
Manufacturing process 28 nm 14 nm
Number of transistors 2,800 million 5,700 million
Die size 212 mm² 232 mm²

Graphics Card

Release date Oct 8th, 2013 Apr 18th, 2017
Generation Volcanic Islands Polaris
Production End-of-life Active
Launch price 199 USD 229 USD
Interface PCIe 3.0 x16 PCIe 3.0 x16
Reviews 90 in our database 52 in our database
Predecessor Sea Islands Arctic Islands
Successor Pirate Islands Vega
Current price Amazon / Newegg

Clocks

Base clock 1000 MHz 1257 MHz
Boost clock 1050 MHz 1340 MHz
Memory clock 1400 MHz 5.6 Gbps effective 2000 MHz 8 Gbps effective

Memory Configuration

Memory size 2 GB 8 GB
Memory type GDDR5 GDDR5
Memory bus width 256 bit 256 bit
Bandwidth 179.2 GB/s 256.0 GB/s

Render Configuration

Shading units 1280 2304
TMUs 80 144
ROPs 32 32
Compute units 20 36
Cache L1 16 KB (per CU) 16 KB (per CU)
Cache L2 512 KB 2 MB

Performance

Pixel rate 33.60 GPixel/s 42.88 GPixel/s
Texture rate 84.00 GTexel/s 193.0 GTexel/s
FP32 (float) performance 2.688 TFLOPS 6.175 TFLOPS
FP64 (double) performance 168.0 GFLOPS (1:16) 385.9 GFLOPS (1:16)
FP16 (half) performance 6.175 TFLOPS (1:1)

Dimensions & Outputs

Slot width Dual-slot Dual-slot
Length 241 mm 9.5 inches 241 mm 9.5 inches
Width 109 mm 4.3 inches
Height 36 mm 1.4 inches
TDP 180 W 185 W
Suggested PSU 450 W 450 W
Outputs 2x DVI1x HDMI1x DisplayPort 1x HDMI3x DisplayPort
Power connectors 2x 6-pin 1x 8-pin
Board number C631, C632 C940, D009-04

API Support & Features

DirectX 12 (11_1) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 1.2 2.1
Vulkan 1.2 1.2
Shader model 5.1 6.4

Other Features

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