NVIDIA GeForce RTX 4090 D vs AMD Radeon HD 6450

VS

NVIDIA GeForce RTX 4090 D AMD Radeon HD 6450

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 D 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 D 's Advantages

Released 12 years and 8 months late

Boost Clock2520MHz

Larger VRAM bandwidth (1008GB/s vs 25.60GB/s)

14432 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 425W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 D +36670%

73.54 TFLOPS

Radeon HD 6450

0.2 TFLOPS

GeForce RTX 4090 D

VS

Radeon HD 6450

Graphics Card

Dec 2023

Release Date

Apr 2011

GeForce 40

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

2280 MHz

Base Clock

-

2520 MHz

Boost Clock

-

1313 MHz

Memory Clock

800 MHz

Memory

24GB

Memory Size

512MB

GDDR6X

Memory Type

GDDR5

384bit

Memory Bus

64bit

1008GB/s

Bandwidth

25.60GB/s

Render Config

114

SM Count

-

Compute Units

2

14592

Shading Units

160

456

TMUs

8

176

ROPs

4

456

Tensor Cores

-

114

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

72 MB

L2 Cache

128 KB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

2.500 GPixel/s

1149 GTexel/s

Texture Rate

5.000 GTexel/s

73.54 TFLOPS

FP16 (half)

-

73.54 TFLOPS

FP32 (float)

200.0 GFLOPS

1149 GFLOPS

FP64 (double)

-

Graphics Processor

AD102

GPU Name

Caicos

AD102-250-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

Board Design

425W

TDP

18W

800 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 16-pin

Power Connectors

None

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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