NVIDIA GeForce RTX 4090D vs AMD Radeon RX 6600

VS

NVIDIA GeForce RTX 4090D

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090D and 8GB VRAM Radeon RX 6600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090D 's Advantages

Released 2 years and 2 months late

Boost Clock has increased by 1% (2520MHz vs 2491MHz)

More VRAM (24GB vs 8GB)

Larger VRAM bandwidth (1008GB/s vs 224.0GB/s)

12800 additional rendering cores

AMD Radeon RX 6600 's Advantages

Lower TDP (132W vs 425W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090D +723%

73.54 TFLOPS

Radeon RX 6600

8.928 TFLOPS

GeForce RTX 4090D

VS

Radeon RX 6600

Graphics Card

Dec 2023

Release Date

Oct 2021

GeForce 40

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

2280 MHz

Base Clock

1626 MHz

2520 MHz

Boost Clock

2491 MHz

1313 MHz

Memory Clock

1750 MHz

Memory

24GB

Memory Size

8GB

GDDR6X

Memory Type

GDDR6

384bit

Memory Bus

128bit

1008GB/s

Bandwidth

224.0GB/s

Render Config

-

Compute Units

28

114

SM Count

-

14592

Shading Units

1792

456

TMUs

112

176

ROPs

64

456

Tensor Cores

-

114

RT Cores

28

128 KB (per SM)

L1 Cache

128 KB per Array

72 MB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

159.4 GPixel/s

1149 GTexel/s

Texture Rate

279.0 GTexel/s

73.54 TFLOPS

FP16 (half)

17.86 TFLOPS

73.54 TFLOPS

FP32 (float)

8.928 TFLOPS

1149 GFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

425W

TDP

132W

800 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 16-pin

Power Connectors

1x 8-pin

Graphics Processor

AD102

GPU Name

Navi 23

AD102-250-A1

GPU Variant

Navi 23 XL (215-130000016)

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

5 nm

Process Size

7 nm

76.3 billion

Transistors

11.06 billion

609 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

8.9

CUDA

-

6.7

Shader Model

6.5

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