AMD Radeon HD 6450M vs AMD Radeon RX 6850M XT

VS

AMD Radeon HD 6450M

AMD Radeon RX 6850M XT

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6450M and 12GB VRAM Radeon RX 6850M XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6850M XT 's Advantages

Released 11 years late

Boost Clock2581MHz

More VRAM (12GB vs 1024GB)

Larger VRAM bandwidth (384.0GB/s vs 12.80GB/s)

2400 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450M

0.192 TFLOPS

Radeon RX 6850M XT +6780%

13.21 TFLOPS

Radeon HD 6450M

VS

Radeon RX 6850M XT

Graphics Card

Jan 2011

Release Date

Jan 2022

Vancouver

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2321 MHz

-

Boost Clock

2581 MHz

800 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

12GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

192bit

12.80GB/s

Bandwidth

384.0GB/s

Render Config

2

Compute Units

40

-

160

Shading Units

2560

8

TMUs

160

4

ROPs

64

-

RT Cores

40

8 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

2.400 GPixel/s

Pixel Rate

165.2 GPixel/s

4.800 GTexel/s

Texture Rate

413.0 GTexel/s

-

FP16 (half)

26.43 TFLOPS

192.0 GFLOPS

FP32 (float)

13.21 TFLOPS

-

FP64 (double)

825.9 GFLOPS

Board Design

Unknown

TDP

165W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

Navi 22

Seymour PRO S3 (216-0809024)

GPU Variant

Navi 22 XTM

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.37 billion

Transistors

17.2 billion

67 mm²

Die Size

335 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.5

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