AMD Radeon RX 480 vs AMD Radeon R9 390 X2
GPU Specs Compare
Graphics Card
Release Date
Jun 2016
Sep 2015
Generation
Arctic Islands
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
1120 MHz
-
Boost Clock
1266 MHz
-
Memory Clock
2000 MHz
1350 MHz
Memory
Memory Size
8GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
512bit
Bandwidth
256.0GB/s
345.6GB/s
Render Config
Compute Units
36
40
Shading Units
2304
2560
TMUs
144
160
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
2 MB
1024 KB
Theoretical Performance
Pixel Rate
40.51 GPixel/s
64.00 GPixel/s
Texture Rate
182.3 GTexel/s
160.0 GTexel/s
FP16 (half)
5.834 TFLOPS
-
FP32 (float)
5.834 TFLOPS
5.120 TFLOPS
FP64 (double)
364.6 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Ellesmere
Grenada
GPU Variant
Polaris 10 XT(215-0876184)
Grenada PRO(215-0880030)
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
580W
Suggested PSU
450 W
950 W
Outputs
1x HDMI 2.0b3x DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 6-pin
4x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.1
2.0
Vulkan
1.3
1.2
Shader Model
6.7
6.3