AMD Radeon R9 280 vs AMD Radeon RX 6600

VS

AMD Radeon R9 280

AMD Radeon RX 6600

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280 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 280 's Advantages

Larger VRAM bandwidth (240.0GB/s vs 224.0GB/s)

AMD Radeon RX 6600 's Advantages

Released 7 years and 7 months late

Boost Clock has increased by 167% (2491MHz vs 933MHz)

More VRAM (8GB vs 3GB)

Lower TDP (132W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 280

3.344 TFLOPS

Radeon RX 6600 +166%

8.928 TFLOPS

3DMark Time Spy

Radeon R9 280

2009

Radeon RX 6600 +302%

8084

Radeon R9 280

VS

Radeon RX 6600

Graphics Card

Mar 2014

Release Date

Oct 2021

Volcanic Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

827 MHz

Base Clock

1626 MHz

933 MHz

Boost Clock

2491 MHz

1250 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

224.0GB/s

Render Config

28

Compute Units

28

-

1792

Shading Units

1792

112

TMUs

112

32

ROPs

64

-

RT Cores

28

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

29.86 GPixel/s

Pixel Rate

159.4 GPixel/s

104.5 GTexel/s

Texture Rate

279.0 GTexel/s

-

FP16 (half)

17.86 TFLOPS

3.344 TFLOPS

FP32 (float)

8.928 TFLOPS

836.0 GFLOPS

FP64 (double)

558.0 GFLOPS

Board Design

200W

TDP

132W

550 W

Suggested PSU

300 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Tahiti

GPU Name

Navi 23

Tahiti PRO3 (215-0821330)

GPU Variant

Navi 23 XL (215-130000016)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

4.313 billion

Transistors

11.06 billion

352 mm²

Die Size

237 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.1

1.2

Vulkan

1.3

-

5.1

Shader Model

6.5

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