AMD Radeon RX 580 2048SP vs AMD Radeon R9 390X
GPU · Specs Compare
Graphics Card
Release Date
Oct 2018
Jun 2015
Generation
Polaris
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1168 MHz
—
Boost Clock
1284 MHz
—
Memory Clock
1750 MHz
1500 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
512bit
Bandwidth
224.0GB/s
384.0GB/s
Render Config
Compute Units
32
44
Shading Units
2048
2816
TMUs
128
176
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
1024 KB
Theoretical Performance
Pixel Rate
41.09 GPixel/s
67.20 GPixel/s
Texture Rate
164.4 GTexel/s
184.8 GTexel/s
FP16 (half)
5.259 TFLOPS
—
FP32 (float)
5.259 TFLOPS
5.914 TFLOPS
FP64 (double)
328.7 GFLOPS
739.2 GFLOPS
Graphics Processor
GPU Name
Polaris 20
Grenada
GPU Variant
Polaris 20 XL(215-0910052)
Grenada XT(215-0880004)
Architecture
GCN 4.0
GCN 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
28 nm
Transistors
5.7 billion
6.2 billion
Die Size
232 mm²
438 mm²
Board Design
TDP
150W
275W
Suggested PSU
450 W
600 W
Outputs
1x DVI1x HDMI 2.0b3x DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 8-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.2
1.2
Shader Model
6.4
6.3
Benchmark
3DMark Time Spy
3,826
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.