AMD Radeon RX 470 Mobile vs AMD Radeon HD 7770M

VS

AMD Radeon RX 470 Mobile

AMD Radeon HD 7770M

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 470 Mobile and 1024MB VRAM Radeon HD 7770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 470 Mobile 's Advantages

Released 4 years and 4 months late

Boost Clock1074MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (224.0GB/s vs 64.00GB/s)

1536 additional rendering cores

AMD Radeon HD 7770M 's Advantages

Lower TDP (32W vs 85W)

Score

Benchmark

FP32 (float)

Radeon RX 470 Mobile +536%

4.399 TFLOPS

Radeon HD 7770M

0.691 TFLOPS

Radeon RX 470 Mobile

VS

Radeon HD 7770M

Graphics Card

Aug 2016

Release Date

Apr 2012

Mobility Radeon

Generation

London

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

926 MHz

Base Clock

-

1074 MHz

Boost Clock

-

1750 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

224.0GB/s

Bandwidth

64.00GB/s

Render Config

32

Compute Units

8

-

2048

Shading Units

512

128

TMUs

32

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

34.37 GPixel/s

Pixel Rate

10.80 GPixel/s

137.5 GTexel/s

Texture Rate

21.60 GTexel/s

4.399 TFLOPS

FP16 (half)

-

4.399 TFLOPS

FP32 (float)

691.2 GFLOPS

274.9 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

85W

TDP

32W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Ellesmere

GPU Name

Chelsea

Ellesmere PRO

GPU Variant

Chelsea XT

GCN 4.0

Architecture

GCN 1.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

28 nm

5.7 billion

Transistors

1.5 billion

232 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

Vulkan

1.2

-

6.4

Shader Model

5.1

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