AMD Radeon RX 6650 XT vs AMD Radeon HD 6850 X2

VS

AMD Radeon RX 6650 XT

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6650 XT and 2GB VRAM Radeon HD 6850 X2 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 10 years and 8 months late

Boost Clock2635MHz

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (280.3GB/s vs 134.4GB/s)

1088 additional rendering cores

Lower TDP (176W vs 254W)

Score

Benchmark

FP32 (float)

Radeon RX 6650 XT +602%

10.79 TFLOPS

Radeon HD 6850 X2

1.536 TFLOPS

Radeon RX 6650 XT

VS

Radeon HD 6850 X2

Graphics Card

May 2022

Release Date

Sep 2011

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

2055 MHz

Base Clock

-

2635 MHz

Boost Clock

-

2190 MHz

Memory Clock

1050 MHz

Memory

8GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

280.3GB/s

Bandwidth

134.4GB/s

Render Config

32

Compute Units

12

-

2048

Shading Units

960

128

TMUs

48

64

ROPs

32

-

32

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

32 MB

L3 Cache

-

Theoretical Performance

168.6 GPixel/s

Pixel Rate

25.60 GPixel/s

337.3 GTexel/s

Texture Rate

38.40 GTexel/s

21.59 TFLOPS

FP16 (half)

-

10.79 TFLOPS

FP32 (float)

1.536 TFLOPS

674.6 GFLOPS

FP64 (double)

-

Board Design

176W

TDP

254W

450 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Navi 23

GPU Name

Barts

Navi 23 KXT (215-130000136)

GPU Variant

Barts PRO (215-0798006)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

11.06 billion

Transistors

1.7 billion

237 mm²

Die Size

255 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

1.3

Vulkan

N/A

-

6.5

Shader Model

5.0

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