AMD Radeon RX 6650 XT vs AMD Radeon R9 390X

VS

AMD Radeon RX 6650 XT AMD Radeon R9 390X

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT and 8GB VRAM Radeon R9 390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6650 XT 's Advantages

Released 6 years and 11 months late

Boost Clock2635MHz

Lower TDP (176W vs 275W)

AMD Radeon R9 390X 's Advantages

Larger VRAM bandwidth (384.0GB/s vs 280.3GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6650 XT +82%

10.79 TFLOPS

Radeon R9 390X

5.914 TFLOPS

3DMark Time Spy

Radeon RX 6650 XT +133%

9902

Radeon R9 390X

4245

Radeon RX 6650 XT

VS

Radeon R9 390X

Graphics Card

May 2022

Release Date

Jun 2015

Navi II

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

2055 MHz

Base Clock

-

2635 MHz

Boost Clock

-

2190 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

512bit

280.3GB/s

Bandwidth

384.0GB/s

Render Config

-

SM Count

-

32

Compute Units

44

2048

Shading Units

2816

128

TMUs

176

64

ROPs

64

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

Theoretical Performance

168.6 GPixel/s

Pixel Rate

67.20 GPixel/s

337.3 GTexel/s

Texture Rate

184.8 GTexel/s

21.59 TFLOPS

FP16 (half)

-

10.79 TFLOPS

FP32 (float)

5.914 TFLOPS

674.6 GFLOPS

FP64 (double)

739.2 GFLOPS

Graphics Processor

Navi 23

GPU Name

Grenada

Navi 23 KXT (215-130000136)

GPU Variant

Grenada XT (215-0880004)

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

Board Design

176W

TDP

275W

450 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 Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.3

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