AMD Radeon R9 M470X vs AMD Radeon RX 640 Mobile

VS

AMD Radeon R9 M470X AMD Radeon RX 640 Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M470X and 2GB VRAM Radeon RX 640 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M470X 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (76.80GB/s vs 48.00GB/s)

256 additional rendering cores

AMD Radeon RX 640 Mobile 's Advantages

Released 3 years late

Boost Clock has increased by 11% (1218MHz vs 1100MHz)

Score

Benchmark

FP32 (float)

Radeon R9 M470X +26%

1.971 TFLOPS

Radeon RX 640 Mobile

1.559 TFLOPS

Radeon R9 M470X

VS

Radeon RX 640 Mobile

Graphics Card

May 2016

Release Date

May 2019

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1000 MHz

Base Clock

1082 MHz

1100 MHz

Boost Clock

1218 MHz

1200 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

76.80GB/s

Bandwidth

48.00GB/s

Render Config

-

SM Count

-

14

Compute Units

10

896

Shading Units

640

56

TMUs

40

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

17.60 GPixel/s

Pixel Rate

19.49 GPixel/s

61.60 GTexel/s

Texture Rate

48.72 GTexel/s

-

FP16 (half)

1.559 TFLOPS

1.971 TFLOPS

FP32 (float)

1.559 TFLOPS

123.2 GFLOPS

FP64 (double)

97.44 GFLOPS

Graphics Processor

Emerald

GPU Name

Polaris 23

Emerald XT

GPU Variant

Polaris 23 XT

GCN 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

2.08 billion

Transistors

2.2 billion

160 mm²

Die Size

103 mm²

Board Design

Unknown

TDP

50W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.4

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