AMD Radeon RX 6450M vs AMD Radeon RX 7800M

VS

AMD Radeon RX 6450M

AMD Radeon RX 7800M

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6450M and 12GB VRAM Radeon RX 7800M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6450M 's Advantages

Boost Clock has increased by 15% (2460MHz vs 2145MHz)

Lower TDP (50W vs 180W)

AMD Radeon RX 7800M 's Advantages

Released 1 years and 8 months late

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (432GB/s vs 128.0GB/s)

3072 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6450M

3.779 TFLOPS

Radeon RX 7800M +849%

35.87 TFLOPS

Radeon RX 6450M

VS

Radeon RX 7800M

Graphics Card

Jan 2023

Release Date

Sep 2024

Navi Mobile

Generation

Navi Mobile

Mobile

Type

Mobile

PCIe 4.0 x4

Bus Interface

PCIe 4.0 x16

Clock Speeds

2000 MHz

Base Clock

1825 MHz

2460 MHz

Boost Clock

2145 MHz

2000 MHz

Memory Clock

2250 MHz

Memory

4GB

Memory Size

12GB

GDDR6

Memory Type

GDDR6

64bit

Memory Bus

192bit

128.0GB/s

Bandwidth

432GB/s

Render Config

12

Compute Units

60

-

768

Shading Units

3840

48

TMUs

240

32

ROPs

96

-

12

RT Cores

60

128 KB per Array

L1 Cache

256 KB per Array

1024 KB

L2 Cache

6 MB

16 MB

L3 Cache

48 MB

Theoretical Performance

78.72 GPixel/s

Pixel Rate

401.3 GPixel/s

118.1 GTexel/s

Texture Rate

560.4 GTexel/s

7.557 TFLOPS

FP16 (half)

71.73 TFLOPS

3.779 TFLOPS

FP32 (float)

35.87 TFLOPS

236.2 GFLOPS

FP64 (double)

1121 GFLOPS

Board Design

50W

TDP

180W

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Navi 24

GPU Name

Navi 32

Navi 24 XML

GPU Variant

Navi 32

RDNA 2.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

6 nm

Process Size

5 nm

5.4 billion

Transistors

28.1 billion

107 mm²

Die Size

529 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

2.2

1.3

Vulkan

1.3

-

6.7

Shader Model

6.7

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