AMD Radeon R9 M395X Mac Edition vs AMD Radeon Sky 700

Edit	AMD Radeon R9 M395X Mac Edition Check Price	AMD Radeon Sky 700 Check Price

Table of Contents

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

Graphics Processor

GPU model	Amethyst	Tahiti
GPU variant	Amethyst XT	Tahiti PRO GL
Architecture	GCN 3.0	GCN 1.0
Foundry	TSMC	TSMC
Manufacturing process	28 nm	28 nm
Number of transistors	5,000 million	4,313 million
Die size	366 mm²	352 mm²

Mobile graphics

Release date	May 5th, 2015	—
Generation	Crystal System (R9 M300)	—
Production	End-of-life	—
Interface	MXM-B (3.0)	—
Predecessor	Solar System	—
Successor	Mobility Radeon	—

Clocks

GPU clock	909 MHz	900 MHz
Memory clock	1365 MHz 5.5 Gbps effective	1375 MHz 5.5 Gbps effective

Memory Configuration

Memory size	4 GB	6 GB
Memory type	GDDR5	GDDR5
Memory bus width	256 bit	384 bit
Bandwidth	174.7 GB/s	264.0 GB/s

Render Configuration

Shading units	2048	1792
TMUs	128	112
ROPs	32	32
Compute units	32	28
Cache L1	16 KB (per CU)	16 KB (per CU)
Cache L2	512 KB	768 KB

Performance

Pixel rate	29.09 GPixel/s	28.80 GPixel/s
Texture rate	116.4 GTexel/s	100.8 GTexel/s
FP16 (half) performance	3.723 TFLOPS (1:1)	—
FP32 (float) performance	3.723 TFLOPS	3.226 TFLOPS
FP64 (double) performance	232.7 GFLOPS (1:16)	806.4 GFLOPS (1:4)

Dimensions & Outputs

Slot width	MXM Module	Dual-slot
TDP	250 W	225 W
Outputs	No outputs	1x DisplayPort
Power connectors	None	1x 8-pin
Length	—	267 mm 10.5 inches
Width	—	111 mm 4.4 inches
Suggested PSU	—	550 W

API Support & Features

DirectX	12 (12_0)	12 (11_1)
OpenGL	4.6	4.6
OpenCL	2.0	1.2
Vulkan	1.2	1.2
Shader model	6.3	5.1

Other Features

Graphics Card

Release date	—	Mar 27th, 2013
Generation	—	Radeon Sky
Production	—	End-of-life
Interface	—	PCIe 3.0 x16

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