AMD Radeon RX 6800 vs AMD Radeon HD 6850 1440SP Edition

VS

AMD Radeon RX 6800

AMD Radeon HD 6850 1440SP Edition

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 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 6800 's Advantages

Released 8 years and 2 months late

Boost Clock2105MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (512.0GB/s vs 128.0GB/s)

2400 additional rendering cores

AMD Radeon HD 6850 1440SP Edition 's Advantages

Lower TDP (151W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 +674%

16.17 TFLOPS

Radeon HD 6850 1440SP Edition

2.088 TFLOPS

Radeon RX 6800

VS

Radeon HD 6850 1440SP Edition

Graphics Card

Oct 2020

Release Date

Aug 2012

Navi II

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1700 MHz

Base Clock

-

2105 MHz

Boost Clock

-

2000 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

128.0GB/s

Render Config

60

Compute Units

18

-

3840

Shading Units

1440

240

TMUs

72

96

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

8 KB (per CU)

4 MB

L2 Cache

512 KB

128 MB

L3 Cache

-

Theoretical Performance

202.1 GPixel/s

Pixel Rate

23.20 GPixel/s

505.2 GTexel/s

Texture Rate

52.20 GTexel/s

32.33 TFLOPS

FP16 (half)

-

16.17 TFLOPS

FP32 (float)

2.088 TFLOPS

1010 GFLOPS

FP64 (double)

417.6 GFLOPS

Board Design

250W

TDP

151W

600 W

Suggested PSU

450 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 21

GPU Name

Cypress

Navi 21 XL (215-121000187)

GPU Variant

Cypress PRO (215-0735043)

RDNA 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

7 nm

Process Size

40 nm

26.8 billion

Transistors

2.154 billion

520 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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