AMD Radeon HD 6450 OEM vs AMD Radeon RX 6400

VS

AMD Radeon HD 6450 OEM

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 53W)

AMD Radeon RX 6400 's Advantages

Released 10 years and 11 months late

Boost Clock2321MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 8.528GB/s)

608 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

Radeon RX 6400 +1682%

3.565 TFLOPS

Radeon HD 6450 OEM

VS

Radeon RX 6400

Graphics Card

Feb 2011

Release Date

Jan 2022

Northern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

-

Base Clock

1923 MHz

-

Boost Clock

2321 MHz

533 MHz

Memory Clock

2000 MHz

Memory

512MB

Memory Size

4GB

GDDR3

Memory Type

GDDR6

64bit

Memory Bus

64bit

8.528GB/s

Bandwidth

128.0GB/s

Render Config

2

Compute Units

12

-

160

Shading Units

768

8

TMUs

48

4

ROPs

32

-

RT Cores

12

8 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

2.500 GPixel/s

Pixel Rate

74.27 GPixel/s

5.000 GTexel/s

Texture Rate

111.4 GTexel/s

-

FP16 (half)

7.130 TFLOPS

200.0 GFLOPS

FP32 (float)

3.565 TFLOPS

-

FP64 (double)

222.8 GFLOPS

Board Design

18W

TDP

53W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Caicos

GPU Name

Navi 24

Junbonator

GPU Variant

Navi 24 XL (215-135000046)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

6 nm

0.37 billion

Transistors

5.4 billion

67 mm²

Die Size

107 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.2

N/A

Vulkan

1.3

-

5.0

Shader Model

6.7

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