AMD Radeon RX 580X Mobile vs AMD Radeon HD 8670M

VS

AMD Radeon RX 580X Mobile

AMD Radeon HD 8670M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580X Mobile and 1024MB VRAM Radeon HD 8670M 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 5 years and 1 months late

Boost Clock has increased by 10% (1077MHz vs 975MHz)

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.0GB/s vs 14.40GB/s)

1984 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580X Mobile +695%

4.963 TFLOPS

Radeon HD 8670M

0.624 TFLOPS

Radeon RX 580X Mobile

VS

Radeon HD 8670M

Graphics Card

Apr 2018

Release Date

Mar 2013

Mobility Radeon

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

1000 MHz

Base Clock

925 MHz

1077 MHz

Boost Clock

975 MHz

2000 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

256.0GB/s

Bandwidth

14.40GB/s

Render Config

36

Compute Units

5

-

2304

Shading Units

320

144

TMUs

20

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

128 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

7.800 GPixel/s

155.1 GTexel/s

Texture Rate

19.50 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

624.0 GFLOPS

310.2 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 20

GPU Name

Sun

Polaris 20M XT

GPU Variant

Sun S3 XT (216-0841009)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

0.69 billion

232 mm²

Die Size

56 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

2.1 (1.2)

1.2

Vulkan

1.2.170

-

6.4

Shader Model

6.5 (5.1)

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