AMD Radeon R9 M275X vs AMD Radeon R5 M420

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M275X and 4GB VRAM Radeon R5 M420 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M275X 's Advantages

Boost Clock has increased by 9% (925MHz vs 850MHz)

Larger VRAM bandwidth (72.00GB/s vs 16.00GB/s)

320 additional rendering cores

AMD Radeon R5 M420 's Advantages

Released 2 years and 4 months late

More VRAM (4GB vs 2GB)

Score

Benchmark

FP32 (float)

Radeon R9 M275X +117%

1.184 TFLOPS

Radeon R5 M420

0.544 TFLOPS

Radeon R9 M275X

VS

Radeon R5 M420

Graphics Card

Jan 2014

Release Date

May 2016

Gem System

Generation

Gem System

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

900 MHz

Base Clock

780 MHz

925 MHz

Boost Clock

850 MHz

1125 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

16.00GB/s

Render Config

-

SM Count

-

10

Compute Units

5

640

Shading Units

320

40

TMUs

20

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

14.80 GPixel/s

Pixel Rate

6.800 GPixel/s

37.00 GTexel/s

Texture Rate

17.00 GTexel/s

-

FP16 (half)

-

1184 GFLOPS

FP32 (float)

544.0 GFLOPS

74.00 GFLOPS

FP64 (double)

34.00 GFLOPS

Graphics Processor

Venus

GPU Name

Jet

Venus XTX (216-0846033)

GPU Variant

Jet PRO (216-0856040)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

0.69 billion

123 mm²

Die Size

56 mm²

Board Design

Unknown

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

-

Power Connectors

-

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.1 (1.2)

1.2.170

Vulkan

1.2.170

-

CUDA

-

6.5 (5.1)

Shader Model

6.5 (5.1)

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