AMD Radeon RX 7800M vs AMD Radeon HD 6450A

VS

AMD Radeon RX 7800M

AMD Radeon HD 6450A

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 7800M 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 7800M 's Advantages

Released 13 years and 5 months late

Boost Clock2145MHz

More VRAM (12GB vs 512GB)

Larger VRAM bandwidth (432GB/s vs 8.528GB/s)

3680 additional rendering cores

AMD Radeon HD 6450A 's Advantages

Lower TDP (25W vs 180W)

Score

Benchmark

FP32 (float)

Radeon RX 7800M +17835%

35.87 TFLOPS

Radeon HD 6450A

0.2 TFLOPS

Radeon RX 7800M

VS

Radeon HD 6450A

Graphics Card

Sep 2024

Release Date

Apr 2011

Navi Mobile

Generation

All-In-One

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

1825 MHz

Base Clock

-

2145 MHz

Boost Clock

-

2250 MHz

Memory Clock

533 MHz

Memory

12GB

Memory Size

512MB

GDDR6

Memory Type

DDR3

192bit

Memory Bus

64bit

432GB/s

Bandwidth

8.528GB/s

Render Config

60

Compute Units

2

-

3840

Shading Units

160

240

TMUs

8

96

ROPs

4

-

60

RT Cores

-

256 KB per Array

L1 Cache

8 KB (per CU)

6 MB

L2 Cache

128 KB

48 MB

L3 Cache

-

Theoretical Performance

401.3 GPixel/s

Pixel Rate

2.500 GPixel/s

560.4 GTexel/s

Texture Rate

5.000 GTexel/s

71.73 TFLOPS

FP16 (half)

-

35.87 TFLOPS

FP32 (float)

200.0 GFLOPS

1121 GFLOPS

FP64 (double)

-

Board Design

180W

TDP

25W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 32

GPU Name

Caicos

Navi 32

GPU Variant

-

RDNA 3.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

28.1 billion

Transistors

0.37 billion

529 mm²

Die Size

67 mm²

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

-

6.7

Shader Model

5.0

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