AMD Radeon RX 6600 vs NVIDIA GeForce 6800 XT

VS

AMD Radeon RX 6600

NVIDIA GeForce 6800 XT

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 256MB VRAM GeForce 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 16 years and 1 months late

Boost Clock2491MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (224.0GB/s vs 38.40GB/s)

1792 additional rendering cores

Score

Radeon RX 6600

VS

GeForce 6800 XT

Graphics Card

Oct 2021

Release Date

Sep 2005

Navi II

Generation

GeForce 6 AGP

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

AGP 8x

Clock Speeds

1626 MHz

Base Clock

-

2491 MHz

Boost Clock

-

1750 MHz

Memory Clock

600 MHz

Memory

8GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

38.40GB/s

Render Config

28

Compute Units

-

1792

Shading Units

-

112

TMUs

12

64

ROPs

8

-

28

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

-

32 MB

L3 Cache

-

Theoretical Performance

159.4 GPixel/s

Pixel Rate

3.600 GPixel/s

279.0 GTexel/s

Texture Rate

5.400 GTexel/s

17.86 TFLOPS

FP16 (half)

-

8.928 TFLOPS

FP32 (float)

-

558.0 GFLOPS

FP64 (double)

-

Board Design

132W

TDP

Unknown

300 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x VGA 1x S-Video

1x 8-pin

Power Connectors

1x Molex

Graphics Processor

Navi 23

GPU Name

NV42

Navi 23 XL (215-130000016)

GPU Variant

6800 XT

RDNA 2.0

Architecture

Curie

TSMC

Foundry

TSMC

7 nm

Process Size

110 nm

11.06 billion

Transistors

0.202 billion

237 mm²

Die Size

222 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

9.0c (9_3)

4.6

OpenGL

2.0 (full) 2.1 (partial)

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

3.0

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