AMD Radeon RX 6600 XT vs ATI Radeon HD 2600 XT X2

VS

AMD Radeon RX 6600 XT ATI Radeon HD 2600 XT X2

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 XT and 512MB VRAM Radeon HD 2600 XT X2 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 14 years late

Boost Clock2589MHz

Larger VRAM bandwidth (256.0GB/s vs 25.60GB/s)

1928 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600 XT +5420%

10.6 TFLOPS

Radeon HD 2600 XT X2

0.192 TFLOPS

Radeon RX 6600 XT

VS

Radeon HD 2600 XT X2

Graphics Card

Jul 2021

Release Date

Jul 2007

Navi II

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

1968 MHz

Base Clock

-

2589 MHz

Boost Clock

-

2000 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

25.60GB/s

Render Config

-

SM Count

-

32

Compute Units

3

2048

Shading Units

120

128

TMUs

8

64

ROPs

4

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

-

2 MB

L2 Cache

64 KB

Theoretical Performance

165.7 GPixel/s

Pixel Rate

3.200 GPixel/s

331.4 GTexel/s

Texture Rate

6.400 GTexel/s

21.21 TFLOPS

FP16 (half)

-

10.60 TFLOPS

FP32 (float)

192.0 GFLOPS

662.8 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 23

GPU Name

RV630

Navi 23 XT (215-130000006)

GPU Variant

-

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

65 nm

11.06 billion

Transistors

0.39 billion

237 mm²

Die Size

153 mm²

Board Design

160W

TDP

Unknown

450 W

Suggested PSU

200 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

4x DVI 1x S-Video

1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

CUDA

-

6.7

Shader Model

4.0

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