AMD Radeon RX 6600 vs NVIDIA GeForce RTX 4090 D

VS

AMD Radeon RX 6600

NVIDIA GeForce RTX 4090 D

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

Main Differences

AMD Radeon RX 6600 's Advantages

Lower TDP (132W vs 425W)

NVIDIA GeForce RTX 4090 D '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

Score

Benchmark

FP32 (float)

Radeon RX 6600

8.928 TFLOPS

GeForce RTX 4090 D +723%

73.54 TFLOPS

3DMark Time Spy

Radeon RX 6600

8084

GeForce RTX 4090 D +324%

34332

Radeon RX 6600

VS

GeForce RTX 4090 D

Graphics Card

Oct 2021

Release Date

Dec 2023

Navi II

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1626 MHz

Base Clock

2280 MHz

2491 MHz

Boost Clock

2520 MHz

1750 MHz

Memory Clock

1313 MHz

Memory

8GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6X

128bit

Memory Bus

384bit

224.0GB/s

Bandwidth

1008GB/s

Render Config

28

Compute Units

-

SM Count

114

1792

Shading Units

14592

112

TMUs

456

64

ROPs

176

-

Tensor Cores

456

28

RT Cores

114

128 KB per Array

L1 Cache

128 KB (per SM)

2 MB

L2 Cache

72 MB

32 MB

L3 Cache

-

Theoretical Performance

159.4 GPixel/s

Pixel Rate

443.5 GPixel/s

279.0 GTexel/s

Texture Rate

1149 GTexel/s

17.86 TFLOPS

FP16 (half)

73.54 TFLOPS

8.928 TFLOPS

FP32 (float)

73.54 TFLOPS

558.0 GFLOPS

FP64 (double)

1149 GFLOPS

Board Design

132W

TDP

425W

300 W

Suggested PSU

800 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 8-pin

Power Connectors

1x 16-pin

Graphics Processor

Navi 23

GPU Name

AD102

Navi 23 XL (215-130000016)

GPU Variant

AD102-250-A1

RDNA 2.0

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

11.06 billion

Transistors

76.3 billion

237 mm²

Die Size

609 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.9

6.5

Shader Model

6.7

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