NVIDIA GeForce RTX 4080 16 GB vs AMD Radeon RX 6600

VS

NVIDIA GeForce RTX 4080 16 GB AMD Radeon RX 6600

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 4080 16 GB 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 4080 16 GB 's Advantages

Released 11 months late

Boost Clock has increased by 1% (2505MHz vs 2491MHz)

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (716.8GB/s vs 224.0GB/s)

7936 additional rendering cores

AMD Radeon RX 6600 's Advantages

Lower TDP (132W vs 320W)

Score

Benchmark

FP32 (float)

GeForce RTX 4080 16 GB +445%

48.74 TFLOPS

Radeon RX 6600

8.928 TFLOPS

GeForce RTX 4080 16 GB

VS

Radeon RX 6600

Graphics Card

Sep 2022

Release Date

Oct 2021

GeForce 40

Generation

Navi II

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

2205 MHz

Base Clock

1626 MHz

2505 MHz

Boost Clock

2491 MHz

1400 MHz

Memory Clock

1750 MHz

Memory

16GB

Memory Size

8GB

GDDR6X

Memory Type

GDDR6

256bit

Memory Bus

128bit

716.8GB/s

Bandwidth

224.0GB/s

Render Config

76

SM Count

-

Compute Units

28

9728

Shading Units

1792

304

TMUs

112

ROPs

64

304

Tensor Cores

-

76

RT Cores

28

128 KB (per SM)

L1 Cache

128 KB per Array

64 MB

L2 Cache

2 MB

Theoretical Performance

280.6 GPixel/s

Pixel Rate

159.4 GPixel/s

761.5 GTexel/s

Texture Rate

279.0 GTexel/s

48.74 TFLOPS

FP16 (half)

17.86 TFLOPS

48.74 TFLOPS

FP32 (float)

8.928 TFLOPS

761.5 GFLOPS

FP64 (double)

558.0 GFLOPS

Graphics Processor

AD103

GPU Name

Navi 23

AD103-300-A1

GPU Variant

Navi 23 XL (215-130000016)

Ada Lovelace

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

4 nm

Process Size

7 nm

45.9 billion

Transistors

11.06 billion

379 mm²

Die Size

237 mm²

Board Design

320W

TDP

132W

700 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 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

-

6.6

Shader Model

6.5

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