AMD Radeon R9 380X vs AMD Radeon RX 6600

VS

AMD Radeon R9 380X

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 380X and 8GB VRAM Radeon RX 6600 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 380X 's Advantages

256 additional rendering cores

AMD Radeon RX 6600 's Advantages

Released 5 years and 11 months late

Boost Clock2491MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (224.0GB/s vs 182.4GB/s)

Lower TDP (132W vs 190W)

Score

Benchmark

FP32 (float)

Radeon R9 380X

3.973 TFLOPS

Radeon RX 6600 +124%

8.928 TFLOPS

3DMark Time Spy

Radeon R9 380X

3050

Radeon RX 6600 +165%

8084

Radeon R9 380X

VS

Radeon RX 6600

Graphics Card

Nov 2015

Release Date

Oct 2021

Pirate Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1626 MHz

-

Boost Clock

2491 MHz

1425 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

128bit

182.4GB/s

Bandwidth

224.0GB/s

Render Config

32

Compute Units

28

-

2048

Shading Units

1792

128

TMUs

112

32

ROPs

64

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

31.04 GPixel/s

Pixel Rate

159.4 GPixel/s

124.2 GTexel/s

Texture Rate

279.0 GTexel/s

3.973 TFLOPS

FP16 (half)

17.86 TFLOPS

3.973 TFLOPS

FP32 (float)

8.928 TFLOPS

248.3 GFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

190W

TDP

132W

450 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

2x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

Antigua

GPU Name

Navi 23

Antigua XT (215-0877016)

GPU Variant

Navi 23 XL (215-130000016)

GCN 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

5 billion

Transistors

11.06 billion

366 mm²

Die Size

237 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.3

-

6.3

Shader Model

6.5

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