AMD Radeon RX 6300M vs AMD Radeon HD 6870M

VS

We compared two Mobile platform GPUs: 2GB VRAM Radeon RX 6300M and 1024MB VRAM Radeon HD 6870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6300M 's Advantages

Released 11 years late

Boost Clock2400MHz

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (72.00GB/s vs 64.00GB/s)

Lower TDP (35W vs 50W)

AMD Radeon HD 6870M 's Advantages

32 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6300M +241%

3.686 TFLOPS

Radeon HD 6870M

1.08 TFLOPS

Radeon RX 6300M

VS

Radeon HD 6870M

Graphics Card

Jan 2022

Release Date

Jan 2011

Mobility Radeon

Generation

Vancouver

Mobile

Type

Mobile

PCIe 4.0 x4

Bus Interface

MXM-B (3.0)

Clock Speeds

2000 MHz

Base Clock

-

2400 MHz

Boost Clock

-

2250 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

32bit

Memory Bus

128bit

72.00GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

12

Compute Units

10

768

Shading Units

800

48

TMUs

40

32

ROPs

16

-

Tensor Cores

-

12

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

256 KB

Theoretical Performance

76.80 GPixel/s

Pixel Rate

10.80 GPixel/s

115.2 GTexel/s

Texture Rate

27.00 GTexel/s

7.373 TFLOPS

FP16 (half)

-

3.686 TFLOPS

FP32 (float)

1080 GFLOPS

230.4 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 24

GPU Name

Granville

Navi 24 XML

GPU Variant

Granville XT (216-0769024)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

1.04 billion

107 mm²

Die Size

166 mm²

Board Design

35W

TDP

50W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.2

OpenCL

1.2

1.3

Vulkan

N/A

-

CUDA

-

6.6

Shader Model

5.0

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