AMD Radeon RX 6600 vs ATI Radeon X1550

VS

AMD Radeon RX 6600

ATI Radeon X1550

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 256MB VRAM Radeon X1550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 14 years and 9 months late

Boost Clock2491MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (224.0GB/s vs 12.80GB/s)

1792 additional rendering cores

ATI Radeon X1550 's Advantages

Lower TDP (27W vs 132W)

Score

Radeon RX 6600

VS

Radeon X1550

Graphics Card

Oct 2021

Release Date

Jan 2007

Navi II

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 1.0 x16

Clock Speeds

1626 MHz

Base Clock

-

2491 MHz

Boost Clock

-

1750 MHz

Memory Clock

400 MHz

Memory

8GB

Memory Size

256MB

GDDR6

Memory Type

DDR2

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

12.80GB/s

Render Config

28

Compute Units

-

1792

Shading Units

-

112

TMUs

4

64

ROPs

4

-

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

2.200 GPixel/s

279.0 GTexel/s

Texture Rate

2.200 GTexel/s

17.86 TFLOPS

FP16 (half)

-

8.928 TFLOPS

FP32 (float)

-

558.0 GFLOPS

FP64 (double)

-

Board Design

132W

TDP

27W

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

None

Graphics Processor

Navi 23

GPU Name

RV516

Navi 23 XL (215-130000016)

GPU Variant

-

RDNA 2.0

Architecture

R500

TSMC

Foundry

UMC

7 nm

Process Size

80 nm

11.06 billion

Transistors

0.107 billion

237 mm²

Die Size

100 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

3.0

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