AMD Radeon RX 6600 LE vs AMD Radeon 550X 640SP

VS

AMD Radeon RX 6600 LE

AMD Radeon 550X 640SP

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 LE and 4GB VRAM Radeon 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 LE 's Advantages

Released 5 years and 8 months late

Boost Clock has increased by 133% (2495MHz vs 1071MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (224.0GB/s vs 48.00GB/s)

1152 additional rendering cores

AMD Radeon 550X 640SP 's Advantages

Lower TDP (50W vs 132W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 LE +552%

8.942 TFLOPS

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX 6600 LE

VS

Radeon 550X 640SP

Graphics Card

Dec 2023

Release Date

Apr 2018

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1626 MHz

Base Clock

1019 MHz

2495 MHz

Boost Clock

1071 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

64bit

224.0GB/s

Bandwidth

48.00GB/s

Render Config

28

Compute Units

10

-

1792

Shading Units

640

112

TMUs

40

64

ROPs

16

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

256 KB

32 MB

L3 Cache

-

Theoretical Performance

159.7 GPixel/s

Pixel Rate

17.14 GPixel/s

279.4 GTexel/s

Texture Rate

42.84 GTexel/s

17.88 TFLOPS

FP16 (half)

1371 GFLOPS

8.942 TFLOPS

FP32 (float)

1371 GFLOPS

558.9 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

132W

TDP

50W

300 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

1x 8-pin

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

Lexa

Navi 23 XL (215-130000016)

GPU Variant

Lexa PRO (215-0904018)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

11.06 billion

Transistors

2.2 billion

237 mm²

Die Size

103 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

6.7

Shader Model

6.4

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