AMD Radeon R9 285X vs AMD Radeon RX 6650 XT

VS

AMD Radeon R9 285X

AMD Radeon RX 6650 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 8GB VRAM Radeon RX 6650 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6650 XT 's Advantages

Boost Clock2635MHz

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (280.3GB/s vs 264.0GB/s)

Lower TDP (176W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 285X

4.104 TFLOPS

Radeon RX 6650 XT +162%

10.79 TFLOPS

Radeon R9 285X

VS

Radeon RX 6650 XT

Graphics Card

Unknown

Release Date

May 2022

Volcanic Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

2055 MHz

-

Boost Clock

2635 MHz

1375 MHz

Memory Clock

2190 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

280.3GB/s

Render Config

32

Compute Units

32

-

2048

Shading Units

2048

128

TMUs

128

32

ROPs

64

-

RT Cores

32

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

32.06 GPixel/s

Pixel Rate

168.6 GPixel/s

128.3 GTexel/s

Texture Rate

337.3 GTexel/s

-

FP16 (half)

21.59 TFLOPS

4.104 TFLOPS

FP32 (float)

10.79 TFLOPS

-

FP64 (double)

674.6 GFLOPS

Board Design

200W

TDP

176W

550 W

Suggested PSU

450 W

2x DVI 1x 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

Tonga

GPU Name

Navi 23

Tonga XT (215-0851313)

GPU Variant

Navi 23 KXT (215-130000136)

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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