AMD Radeon RX 580 Mobile vs AMD Radeon HD 8770M

VS

AMD Radeon RX 580 Mobile

AMD Radeon HD 8770M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 580 Mobile and 2GB VRAM Radeon HD 8770M 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 late

Boost Clock has increased by 31% (1077MHz vs 825MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (256.0GB/s vs 72.00GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 580 Mobile +684%

4.963 TFLOPS

Radeon HD 8770M

0.633 TFLOPS

Radeon RX 580 Mobile

VS

Radeon HD 8770M

Graphics Card

Apr 2017

Release Date

Apr 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

775 MHz

1077 MHz

Boost Clock

825 MHz

2000 MHz

Memory Clock

1125 MHz

Memory

8GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

256.0GB/s

Bandwidth

72.00GB/s

Render Config

36

Compute Units

6

-

2304

Shading Units

384

144

TMUs

24

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.46 GPixel/s

Pixel Rate

6.600 GPixel/s

155.1 GTexel/s

Texture Rate

19.80 GTexel/s

4.963 TFLOPS

FP16 (half)

-

4.963 TFLOPS

FP32 (float)

633.6 GFLOPS

310.2 GFLOPS

FP64 (double)

39.60 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

Polaris 20

GPU Name

Mars

Polaris 20M XT

GPU Variant

Mars S3 XT (216-0842018)

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

0.95 billion

232 mm²

Die Size

77 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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