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

VS

AMD Radeon RX 550X 640SP

AMD Radeon RX 6600 LE

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 8GB VRAM Radeon RX 6600 LE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 640SP 's Advantages

Lower TDP (60W vs 132W)

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 2GB)

Larger VRAM bandwidth (224.0GB/s vs 96.00GB/s)

1152 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550X 640SP

1.371 TFLOPS

Radeon RX 6600 LE +552%

8.942 TFLOPS

Radeon RX 550X 640SP

VS

Radeon RX 6600 LE

Graphics Card

Apr 2018

Release Date

Dec 2023

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x8

Clock Speeds

1019 MHz

Base Clock

1626 MHz

1071 MHz

Boost Clock

2495 MHz

1500 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

224.0GB/s

Render Config

10

Compute Units

28

-

640

Shading Units

1792

40

TMUs

112

16

ROPs

64

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

17.14 GPixel/s

Pixel Rate

159.7 GPixel/s

42.84 GTexel/s

Texture Rate

279.4 GTexel/s

1371 GFLOPS

FP16 (half)

17.88 TFLOPS

1371 GFLOPS

FP32 (float)

8.942 TFLOPS

85.68 GFLOPS

FP64 (double)

558.9 GFLOPS

Board Design

60W

TDP

132W

250 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Baffin

GPU Name

Navi 23

Baffin LE

GPU Variant

Navi 23 XL (215-130000016)

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

3 billion

Transistors

11.06 billion

123 mm²

Die Size

237 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.7

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