AMD Radeon R5 M255 vs AMD Radeon RX 6300M

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon R5 M255 and 2GB VRAM Radeon RX 6300M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6300M 's Advantages

Released 7 years and 3 months late

Boost Clock has increased by 155% (2400MHz vs 940MHz)

Larger VRAM bandwidth (72.00GB/s vs 32.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 M255

0.721 TFLOPS

Radeon RX 6300M +411%

3.686 TFLOPS

Radeon R5 M255

VS

Radeon RX 6300M

Graphics Card

Oct 2014

Release Date

Jan 2022

Gem System

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x4

Clock Speeds

925 MHz

Base Clock

2000 MHz

940 MHz

Boost Clock

2400 MHz

1000 MHz

Memory Clock

2250 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR6

128bit

Memory Bus

32bit

32.00GB/s

Bandwidth

72.00GB/s

Render Config

-

SM Count

-

6

Compute Units

12

384

Shading Units

768

24

TMUs

48

8

ROPs

32

-

Tensor Cores

-

RT Cores

12

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

1024 KB

Theoretical Performance

7.520 GPixel/s

Pixel Rate

76.80 GPixel/s

22.56 GTexel/s

Texture Rate

115.2 GTexel/s

721.9 GFLOPS

FP16 (half)

7.373 TFLOPS

721.9 GFLOPS

FP32 (float)

3.686 TFLOPS

45.12 GFLOPS

FP64 (double)

230.4 GFLOPS

Graphics Processor

Topaz

GPU Name

Navi 24

Topaz PRO (216-0858030)

GPU Variant

Navi 24 XML

GCN 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

1.55 billion

Transistors

5.4 billion

125 mm²

Die Size

107 mm²

Board Design

Unknown

TDP

35W

-

Suggested PSU

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.2.170

Vulkan

1.3

-

CUDA

-

6.5

Shader Model

6.6

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