AMD Radeon R9 390 X2 vs AMD Radeon RX 580 2048SP
GPU Specs Compare
Graphics Card
Release Date
Sep 2015
Oct 2018
Generation
Pirate Islands
Polaris
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1350 MHz
1750 MHz
Base Clock
-
1168 MHz
Boost Clock
-
1284 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
512bit
256bit
Bandwidth
345.6GB/s
224.0GB/s
Render Config
Compute Units
40
32
Shading Units
2560
2048
TMUs
160
128
ROPs
64
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
1024 KB
2 MB
Theoretical Performance
Pixel Rate
64.00 GPixel/s
41.09 GPixel/s
Texture Rate
160.0 GTexel/s
164.4 GTexel/s
FP32 (float)
5.120 TFLOPS
5.259 TFLOPS
FP64 (double)
640.0 GFLOPS
328.7 GFLOPS
FP16 (half)
-
5.259 TFLOPS
Graphics Processor
GPU Name
Grenada
Polaris 20
GPU Variant
Grenada PRO(215-0880030)
Polaris 20 XL(215-0910052)
Architecture
GCN 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
28 nm
14 nm
Transistors
6.2 billion
5.7 billion
Die Size
438 mm²
232 mm²
Board Design
TDP
580W
150W
Suggested PSU
950 W
450 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI1x HDMI 2.0b3x DisplayPort 1.4a
Power Connectors
4x 8-pin
1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.1
Vulkan
1.2
1.2
Shader Model
6.3
6.4
📊 Benchmark
3DMark Time Spy
-
3,826