AMD Radeon RX 6450M vs AMD Radeon HD 8670A

VS

AMD Radeon RX 6450M

AMD Radeon HD 8670A

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6450M and 1024MB VRAM Radeon HD 8670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6450M 's Advantages

Released 9 years and 11 months late

Boost Clock2460MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (128.0GB/s vs 16.00GB/s)

384 additional rendering cores

AMD Radeon HD 8670A 's Advantages

Lower TDP (45W vs 50W)

Score

Benchmark

FP32 (float)

Radeon RX 6450M +719%

3.779 TFLOPS

Radeon HD 8670A

0.461 TFLOPS

Radeon RX 6450M

VS

Radeon HD 8670A

Graphics Card

Jan 2023

Release Date

Feb 2013

Navi Mobile

Generation

All-In-One

Mobile

Type

Mobile

PCIe 4.0 x4

Bus Interface

MXM-A (3.0)

Clock Speeds

2000 MHz

Base Clock

-

2460 MHz

Boost Clock

-

2000 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

DDR3

64bit

Memory Bus

64bit

128.0GB/s

Bandwidth

16.00GB/s

Render Config

12

Compute Units

6

-

768

Shading Units

384

48

TMUs

24

32

ROPs

8

-

12

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

128 KB

16 MB

L3 Cache

-

Theoretical Performance

78.72 GPixel/s

Pixel Rate

4.800 GPixel/s

118.1 GTexel/s

Texture Rate

14.40 GTexel/s

7.557 TFLOPS

FP16 (half)

-

3.779 TFLOPS

FP32 (float)

460.8 GFLOPS

236.2 GFLOPS

FP64 (double)

28.80 GFLOPS

Board Design

50W

TDP

45W

-

Portable Device Dependent

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Navi 24

GPU Name

Mars

Navi 24 XML

GPU Variant

Mars XT

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

6 nm

Process Size

28 nm

5.4 billion

Transistors

0.95 billion

107 mm²

Die Size

77 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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