Home GPU Comparison AMD Radeon RX 580 vs AMD Radeon R9 390

AMD Radeon RX 580 vs AMD Radeon R9 390

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 580 and 8GB VRAM Radeon R9 390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 's Advantages
Released 1 years and 10 months late
Boost Clock1340MHz
Lower TDP (185W vs 275W)
AMD Radeon R9 390 's Advantages
Larger VRAM bandwidth (384.0GB/s vs 256.0GB/s)
256 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon RX 580 +20%
6.175 TFLOPS
Radeon R9 390
5.12 TFLOPS
3DMark Time Spy
Radeon RX 580 +10%
4362
Radeon R9 390
3950
VS

Graphics Card

Apr 2017
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
-
1340 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
40
-
-
-
2304
Shading Units
2560
144
TMUs
160
32
ROPs
64
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
1024 KB
-
-
-

Theoretical Performance

42.88 GPixel/s
Pixel Rate
64.00 GPixel/s
193.0 GTexel/s
Texture Rate
160.0 GTexel/s
6.175 TFLOPS
FP16 (half)
-
6.175 TFLOPS
FP32 (float)
5.120 TFLOPS
385.9 GFLOPS
FP64 (double)
640.0 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 PRO (215-0880030)
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

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