NVIDIA GeForce RTX 4090 Ti vs AMD Radeon HD 6450

VS

NVIDIA GeForce RTX 4090 Ti

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 Ti and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 Ti 's Advantages

Boost Clock2565MHz

More VRAM (24GB vs 512GB)

Larger VRAM bandwidth (1152GB/s vs 25.60GB/s)

18016 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 600W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 Ti +46520%

93.24 TFLOPS

Radeon HD 6450

0.2 TFLOPS

GeForce RTX 4090 Ti

VS

Radeon HD 6450

Graphics Card

Unknown

Release Date

Apr 2011

GeForce 40

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2325 MHz

Base Clock

-

2565 MHz

Boost Clock

-

1500 MHz

Memory Clock

800 MHz

Memory

24GB

Memory Size

512MB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

64bit

1152GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

142

SM Count

-

18176

Shading Units

160

568

TMUs

8

192

ROPs

4

568

Tensor Cores

-

142

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

96 MB

L2 Cache

128 KB

-

Theoretical Performance

492.5 GPixel/s

Pixel Rate

2.500 GPixel/s

1457 GTexel/s

Texture Rate

5.000 GTexel/s

93.24 TFLOPS

FP16 (half)

-

93.24 TFLOPS

FP32 (float)

200.0 GFLOPS

1457 GFLOPS

FP64 (double)

-

Board Design

600W

TDP

18W

1000 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 16-pin

Power Connectors

None

Graphics Processor

AD102

GPU Name

Caicos

AD102-400-A1

GPU Variant

Caicos PRO

Ada Lovelace

Architecture

TeraScale 2

TSMC

Foundry

TSMC

5 nm

Process Size

40 nm

76.3 billion

Transistors

0.37 billion

609 mm²

Die Size

67 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

8.9

CUDA

-

6.7

Shader Model

5.0

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