AMD Radeon HD 6390 vs AMD Radeon RX 6600 LE

VS

AMD Radeon HD 6390

AMD Radeon RX 6600 LE

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 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 HD 6390 's Advantages

Lower TDP (39W vs 132W)

AMD Radeon RX 6600 LE 's Advantages

Released 12 years and 5 months late

Boost Clock2495MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (224.0GB/s vs 16.00GB/s)

1472 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

Radeon RX 6600 LE +2440%

8.942 TFLOPS

Radeon HD 6390

VS

Radeon RX 6600 LE

Graphics Card

Jul 2011

Release Date

Dec 2023

Northern Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1626 MHz

-

Boost Clock

2495 MHz

500 MHz

Memory Clock

1750 MHz

Memory

1024MB

Memory Size

8GB

DDR2

Memory Type

GDDR6

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

224.0GB/s

Render Config

4

Compute Units

28

-

320

Shading Units

1792

16

TMUs

112

8

ROPs

64

-

RT Cores

28

8 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

4.400 GPixel/s

Pixel Rate

159.7 GPixel/s

8.800 GTexel/s

Texture Rate

279.4 GTexel/s

-

FP16 (half)

17.88 TFLOPS

352.0 GFLOPS

FP32 (float)

8.942 TFLOPS

-

FP64 (double)

558.9 GFLOPS

Board Design

39W

TDP

132W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Redwood

GPU Name

Navi 23

Redwood LE

GPU Variant

Navi 23 XL (215-130000016)

TeraScale 2

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

0.627 billion

Transistors

11.06 billion

104 mm²

Die Size

237 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.7

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