AMD Radeon RX 455 OEM vs AMD Radeon RX 560X

Edit	AMD Radeon RX 455 OEM Check Price	AMD Radeon RX 560X Check Price

Table of Contents

Graphics Processor
Graphics Card
Clocks
Memory Configuration
Render Configuration
Performance
Dimensions & Outputs
API Support & Features
Other Features

Graphics Processor

GPU model	Tobago	Polaris 21
GPU variant	Tobago PRO (215-0875010)	Polaris 21 XT (215-0908004)
Architecture	GCN 2.0	GCN 4.0
Foundry	TSMC	GlobalFoundries
Manufacturing process	28 nm	14 nm
Number of transistors	2,080 million	3,000 million
Die size	160 mm²	123 mm²

Graphics Card

Release date	Jun 30th, 2016	Apr 11th, 2018
Generation	Arctic Islands	Polaris
Production	End-of-life	Active
Interface	PCIe 3.0 x16	PCIe 3.0 x8
Predecessor	Pirate Islands	Polaris
Successor	Polaris	Vega

Clocks

GPU clock	1050 MHz	—
Memory clock	1625 MHz 6.5 Gbps effective	1750 MHz 7 Gbps effective
Base clock	—	1175 MHz
Boost clock	—	1275 MHz

Memory Configuration

Memory size	2 GB	4 GB
Memory type	GDDR5	GDDR5
Memory bus width	128 bit	128 bit
Bandwidth	104.0 GB/s	112.0 GB/s

Render Configuration

Shading units	768	1024
TMUs	48	64
ROPs	16	16
Compute units	12	16
Cache L1	16 KB (per CU)	16 KB (per CU)
Cache L2	256 KB	1024 KB

Performance

Pixel rate	16.80 GPixel/s	20.40 GPixel/s
Texture rate	50.40 GTexel/s	81.60 GTexel/s
FP32 (float) performance	1.613 TFLOPS	2.611 TFLOPS
FP64 (double) performance	100.8 GFLOPS (1:16)	163.2 GFLOPS (1:16)
FP16 (half) performance	—	2.611 TFLOPS (1:1)

Dimensions & Outputs

Slot width	Single-slot	Dual-slot
Length	165 mm 6.5 inches	170 mm 6.7 inches
TDP	100 W	75 W
Suggested PSU	300 W	250 W
Outputs	1x DVI1x HDMI1x DisplayPort	1x DVI1x HDMI1x DisplayPort
Power connectors	1x 6-pin	None
Board number	C582, C936	C994

API Support & 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

Other Features

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