NVIDIA GeForce RTX 4090 vs AMD Radeon RX 6600 LE

VS

NVIDIA GeForce RTX 4090

AMD Radeon RX 6600 LE

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

Main Differences

NVIDIA GeForce RTX 4090 's Advantages

Boost Clock has increased by 1% (2520MHz vs 2495MHz)

More VRAM (24GB vs 8GB)

Larger VRAM bandwidth (1.01TB/s vs 224.0GB/s)

14592 additional rendering cores

AMD Radeon RX 6600 LE 's Advantages

Released 1 years and 3 months late

Lower TDP (132W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +823%

82.58 TFLOPS

Radeon RX 6600 LE

8.942 TFLOPS

GeForce RTX 4090

VS

Radeon RX 6600 LE

Graphics Card

Sep 2022

Release Date

Dec 2023

GeForce 40

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

2235 MHz

Base Clock

1626 MHz

2520 MHz

Boost Clock

2495 MHz

1313 MHz

Memory Clock

1750 MHz

Memory

24GB

Memory Size

8GB

GDDR6X

Memory Type

GDDR6

384bit

Memory Bus

128bit

1.01TB/s

Bandwidth

224.0GB/s

Render Config

-

Compute Units

28

128

SM Count

-

16384

Shading Units

1792

512

TMUs

112

176

ROPs

64

512

Tensor Cores

-

128

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

159.7 GPixel/s

1290 GTexel/s

Texture Rate

279.4 GTexel/s

82.58 TFLOPS

FP16 (half)

17.88 TFLOPS

82.58 TFLOPS

FP32 (float)

8.942 TFLOPS

1290 GFLOPS

FP64 (double)

558.9 GFLOPS

Board Design

450W

TDP

132W

850 W

Suggested PSU

300 W

1x HDMI 2.13x 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

AD102-300-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

-

6.8

Shader Model

6.7

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