AMD Radeon RX 6800S vs AMD Radeon HD 6450A

VS

AMD Radeon RX 6800S

AMD Radeon HD 6450A

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6800S and 512MB VRAM Radeon HD 6450A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800S 's Advantages

Released 10 years and 9 months late

Boost Clock2100MHz

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (256.0GB/s vs 8.528GB/s)

1888 additional rendering cores

AMD Radeon HD 6450A 's Advantages

Lower TDP (25W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 6800S +4201%

8.602 TFLOPS

Radeon HD 6450A

0.2 TFLOPS

Radeon RX 6800S

VS

Radeon HD 6450A

Graphics Card

Jan 2022

Release Date

Apr 2011

Mobility Radeon

Generation

All-In-One

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

MXM-A (3.0)

Clock Speeds

1800 MHz

Base Clock

-

2100 MHz

Boost Clock

-

2000 MHz

Memory Clock

533 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

DDR3

128bit

Memory Bus

64bit

256.0GB/s

Bandwidth

8.528GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

160

128

TMUs

8

64

ROPs

4

-

32

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

128 KB

32 MB

L3 Cache

-

Theoretical Performance

134.4 GPixel/s

Pixel Rate

2.500 GPixel/s

268.8 GTexel/s

Texture Rate

5.000 GTexel/s

17.20 TFLOPS

FP16 (half)

-

8.602 TFLOPS

FP32 (float)

200.0 GFLOPS

537.6 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

25W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 23

GPU Name

Caicos

-

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

11.06 billion

Transistors

0.37 billion

237 mm²

Die Size

67 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

-

6.5

Shader Model

5.0

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