Radeon RX 580G vs Radeon R9 390X
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580G and 8GB VRAM Radeon R9 390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 580G 's Advantages
Released 3 years and 4 months late
Boost Clock1330MHz
Lower TDP (185W vs 275W)
Radeon R9 390X 's Advantages
Larger VRAM bandwidth (384.0GB/s vs 256.0GB/s)
512 additional rendering cores
Score
Benchmark
FP32 (float)
Radeon RX 580G
+3%
6129
Radeon R9 390X
5914
Graphics Card
Oct 2018
Release Date
Jun 2015
Polaris
Generation
Pirate Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1257 MHz
Base Clock
-
1330 MHz
Boost Clock
-
2000 MHz
Memory Clock
1500 MHz
Memory
8GB
Memory Size
8GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
512bit
256.0GB/s
Bandwidth
384.0GB/s
Render Config
36
Compute Units
44
2304
Shading Units
2816
144
TMUs
176
32
ROPs
64
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
1024 KB
Theoretical Performance
42.56 GPixel/s
Pixel Rate
67.20 GPixel/s
191.5 GTexel/s
Texture Rate
184.8 GTexel/s
6.129 TFLOPS
FP16 (half)
-
6.129 TFLOPS
FP32 (float)
5.914 TFLOPS
383.0 GFLOPS
FP64 (double)
739.2 GFLOPS
Board Design
185W
TDP
275W
450 W
Suggested PSU
600 W
1x HDMI 2.0b
3x DisplayPort 1.4a
Outputs
2x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
Polaris 20
GPU Name
Grenada
Polaris 20 XTX
(215-0910038)
GPU Variant
Grenada XT
(215-0880004)
GCN 4.0
Architecture
GCN 2.0
GlobalFoundries
Foundry
TSMC
14 nm
Process Size
28 nm
5.7 billion
Transistors
6.2 billion
232 mm²
Die Size
438 mm²
Graphics Features
12 (12_0)
DirectX
12 (12_0)
4.6
OpenGL
4.6
2.1
OpenCL
2.0
1.2
Vulkan
1.2
6.4
Shader Model
6.3
