AMD Radeon HD 8670M vs AMD Radeon RX 580 Mobile

VS

AMD Radeon HD 8670M

AMD Radeon RX 580 Mobile

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 8670M and 8GB VRAM Radeon RX 580 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 580 Mobile 's Advantages

Released 4 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 HD 8670M

0.624 TFLOPS

Radeon RX 580 Mobile +695%

4.963 TFLOPS

Radeon HD 8670M

VS

Radeon RX 580 Mobile

Graphics Card

Mar 2013

Release Date

Apr 2017

Solar System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

MXM-B (3.0)

Clock Speeds

925 MHz

Base Clock

1000 MHz

975 MHz

Boost Clock

1077 MHz

900 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

8GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

256.0GB/s

Render Config

5

Compute Units

36

-

320

Shading Units

2304

20

TMUs

144

8

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

2 MB

-

Theoretical Performance

7.800 GPixel/s

Pixel Rate

34.46 GPixel/s

19.50 GTexel/s

Texture Rate

155.1 GTexel/s

-

FP16 (half)

4.963 TFLOPS

624.0 GFLOPS

FP32 (float)

4.963 TFLOPS

39.00 GFLOPS

FP64 (double)

310.2 GFLOPS

Board Design

Unknown

TDP

100W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Sun

GPU Name

Polaris 20

Sun S3 XT (216-0841009)

GPU Variant

Polaris 20M XT

GCN 1.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

0.69 billion

Transistors

5.7 billion

56 mm²

Die Size

232 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1

1.2.170

Vulkan

1.2

-

6.5 (5.1)

Shader Model

6.4

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