AMD Radeon HD 7450A vs AMD Radeon 620 Mobile

VS

AMD Radeon HD 7450A

AMD Radeon 620 Mobile

We compared two Mobile platform GPUs: 512MB VRAM Radeon HD 7450A and 2GB VRAM Radeon 620 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7450A 's Advantages

Lower TDP (25W vs 50W)

AMD Radeon 620 Mobile 's Advantages

Released 7 years and 4 months late

Boost Clock1024MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (14.40GB/s vs 12.80GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7450A

0.2 TFLOPS

Radeon 620 Mobile +293%

0.786 TFLOPS

Radeon HD 7450A

VS

Radeon 620 Mobile

Graphics Card

Jan 2012

Release Date

May 2019

All-In-One

Generation

Mobility Radeon

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

730 MHz

-

Boost Clock

1024 MHz

800 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

64bit

Memory Bus

64bit

12.80GB/s

Bandwidth

14.40GB/s

Render Config

2

Compute Units

6

-

160

Shading Units

384

8

TMUs

24

4

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

128 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

8.192 GPixel/s

5.000 GTexel/s

Texture Rate

24.58 GTexel/s

-

FP16 (half)

786.4 GFLOPS

200.0 GFLOPS

FP32 (float)

786.4 GFLOPS

-

FP64 (double)

49.15 GFLOPS

Board Design

25W

TDP

50W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Caicos

GPU Name

Polaris 24

-

GPU Variant

Polaris 24 XL

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.55 billion

67 mm²

Die Size

125 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

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