AMD Radeon RX 6600 LE vs AMD Radeon R9 290X

VS

AMD Radeon RX 6600 LE

AMD Radeon R9 290X

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 LE and 4GB VRAM Radeon R9 290X 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 10 years and 2 months late

Boost Clock2495MHz

More VRAM (8GB vs 4GB)

Lower TDP (132W vs 290W)

AMD Radeon R9 290X 's Advantages

Larger VRAM bandwidth (320.0GB/s vs 224.0GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600 LE +58%

8.942 TFLOPS

Radeon R9 290X

5.632 TFLOPS

Radeon RX 6600 LE

VS

Radeon R9 290X

Graphics Card

Dec 2023

Release Date

Oct 2013

Navi II

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

1626 MHz

Base Clock

-

2495 MHz

Boost Clock

-

1750 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

512bit

224.0GB/s

Bandwidth

320.0GB/s

Render Config

28

Compute Units

44

-

1792

Shading Units

2816

112

TMUs

176

64

ROPs

64

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

32 MB

L3 Cache

-

Theoretical Performance

159.7 GPixel/s

Pixel Rate

64.00 GPixel/s

279.4 GTexel/s

Texture Rate

176.0 GTexel/s

17.88 TFLOPS

FP16 (half)

-

8.942 TFLOPS

FP32 (float)

5.632 TFLOPS

558.9 GFLOPS

FP64 (double)

704.0 GFLOPS

Board Design

132W

TDP

290W

300 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 23

GPU Name

Hawaii

Navi 23 XL (215-130000016)

GPU Variant

Hawaii XT (215-0852000)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

11.06 billion

Transistors

6.2 billion

237 mm²

Die Size

438 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

6.7

Shader Model

6.3

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