AMD Radeon RX 6600 XT vs ATI Radeon X800 GT AGP

VS

AMD Radeon RX 6600 XT

ATI Radeon X800 GT AGP

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 256MB VRAM Radeon X800 GT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 XT 's Advantages

Released 13 years and 8 months late

Boost Clock2589MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (256.0GB/s vs 31.55GB/s)

2048 additional rendering cores

ATI Radeon X800 GT AGP 's Advantages

Lower TDP (40W vs 160W)

Score

Radeon RX 6600 XT

VS

Radeon X800 GT AGP

Graphics Card

Jul 2021

Release Date

Nov 2007

Navi II

Generation

Radeon R400 AGP

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

AGP 8x

Clock Speeds

1968 MHz

Base Clock

-

2589 MHz

Boost Clock

-

2000 MHz

Memory Clock

493 MHz

Memory

8GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

256bit

256.0GB/s

Bandwidth

31.55GB/s

Render Config

32

Compute Units

-

2048

Shading Units

-

128

TMUs

8

64

ROPs

8

-

32

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

-

32 MB

L3 Cache

-

Theoretical Performance

165.7 GPixel/s

Pixel Rate

3.784 GPixel/s

331.4 GTexel/s

Texture Rate

3.784 GTexel/s

21.21 TFLOPS

FP16 (half)

-

10.60 TFLOPS

FP32 (float)

-

662.8 GFLOPS

FP64 (double)

-

Board Design

160W

TDP

40W

450 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

R420

Navi 23 XT (215-130000006)

GPU Variant

R420 GT (215RAACGA12F)

RDNA 2.0

Architecture

R400

TSMC

Foundry

TSMC

7 nm

Process Size

130 nm

11.06 billion

Transistors

0.16 billion

237 mm²

Die Size

281 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

9.0b (9_2)

4.6

OpenGL

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

-

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