AMD Radeon RX 580X Mobile vs AMD Radeon HD 6970M Mac Edition

VS

AMD Radeon RX 580X Mobile

AMD Radeon HD 6970M Mac Edition

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580X Mobile and 2GB VRAM Radeon HD 6970M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580X Mobile 's Advantages

Released 6 years and 8 months late

Boost Clock1077MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 115.2GB/s)

1344 additional rendering cores

AMD Radeon HD 6970M Mac Edition 's Advantages

Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 580X Mobile +280%

4.963 TFLOPS

Radeon HD 6970M Mac Edition

1.306 TFLOPS

Radeon RX 580X Mobile

VS

Radeon HD 6970M Mac Edition

Graphics Card

Apr 2018

Release Date

Aug 2011

Mobility Radeon

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

1000 MHz

Base Clock

-

1077 MHz

Boost Clock

-

2000 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

256.0GB/s

Bandwidth

115.2GB/s

Render Config

36

Compute Units

12

-

2304

Shading Units

960

144

TMUs

48

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

21.76 GPixel/s

155.1 GTexel/s

Texture Rate

32.64 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

1306 GFLOPS

310.2 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Polaris 20

GPU Name

Blackcomb

Polaris 20M XT

GPU Variant

Blackcomb XT (216-0811000)

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

5.7 billion

Transistors

1.7 billion

232 mm²

Die Size

212 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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