AMD Radeon RX 6450M vs AMD Radeon HD 7490M

VS

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6450M and 1024MB VRAM Radeon HD 7490M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6450M 's Advantages

Released 11 years late

Boost Clock2460MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (128.0GB/s vs 30.40GB/s)

608 additional rendering cores

AMD Radeon HD 7490M 's Advantages

Lower TDP (9W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 6450M +1376%

3.779 TFLOPS

Radeon HD 7490M

0.256 TFLOPS

Radeon RX 6450M

VS

Radeon HD 7490M

Graphics Card

Jan 2023

Release Date

Jan 2012

Navi Mobile

Generation

London

Mobile

Type

Mobile

PCIe 4.0 x4

Bus Interface

PCIe 2.0 x16

Clock Speeds

2000 MHz

Base Clock

-

2460 MHz

Boost Clock

-

2000 MHz

Memory Clock

950 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

64bit

128.0GB/s

Bandwidth

30.40GB/s

Render Config

-

SM Count

-

12

Compute Units

2

768

Shading Units

160

48

TMUs

8

32

ROPs

4

-

Tensor Cores

-

12

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

128 KB

Theoretical Performance

78.72 GPixel/s

Pixel Rate

3.200 GPixel/s

118.1 GTexel/s

Texture Rate

6.400 GTexel/s

7.557 TFLOPS

FP16 (half)

-

3.779 TFLOPS

FP32 (float)

256.0 GFLOPS

236.2 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 24

GPU Name

Seymour

Navi 24 XML

GPU Variant

Seymour XTX (216-0810005)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

6 nm

Process Size

40 nm

5.4 billion

Transistors

0.37 billion

107 mm²

Die Size

67 mm²

Board Design

50W

TDP

9W

-

Suggested PSU

-

Portable Device Dependent

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

-

6.7

Shader Model

5.0

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