AMD Radeon RX 6600 vs AMD Radeon HD 6850 1440SP Edition

VS

AMD Radeon RX 6600

AMD Radeon HD 6850 1440SP Edition

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 and 1024MB VRAM Radeon HD 6850 1440SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600 's Advantages

Released 9 years and 2 months late

Boost Clock2491MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (224.0GB/s vs 128.0GB/s)

352 additional rendering cores

Lower TDP (132W vs 151W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 +327%

8.928 TFLOPS

Radeon HD 6850 1440SP Edition

2.088 TFLOPS

Radeon RX 6600

VS

Radeon HD 6850 1440SP Edition

Graphics Card

Oct 2021

Release Date

Aug 2012

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1626 MHz

Base Clock

-

2491 MHz

Boost Clock

-

1750 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

128.0GB/s

Render Config

28

Compute Units

18

-

1792

Shading Units

1440

112

TMUs

72

64

ROPs

32

-

28

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

512 KB

32 MB

L3 Cache

-

Theoretical Performance

159.4 GPixel/s

Pixel Rate

23.20 GPixel/s

279.0 GTexel/s

Texture Rate

52.20 GTexel/s

17.86 TFLOPS

FP16 (half)

-

8.928 TFLOPS

FP32 (float)

2.088 TFLOPS

558.0 GFLOPS

FP64 (double)

417.6 GFLOPS

Board Design

132W

TDP

151W

300 W

Suggested PSU

450 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 6-pin

Graphics Processor

Navi 23

GPU Name

Cypress

Navi 23 XL (215-130000016)

GPU Variant

Cypress PRO (215-0735043)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

11.06 billion

Transistors

2.154 billion

237 mm²

Die Size

334 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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