AMD Radeon R9 285 vs AMD Radeon Pro W6900X

VS

AMD Radeon R9 285

AMD Radeon Pro W6900X

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 285 and 32GB VRAM Radeon Pro W6900X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285 's Advantages

Lower TDP (190W vs 300W)

AMD Radeon Pro W6900X 's Advantages

Released 6 years and 11 months late

Boost Clock2150MHz

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 176.0GB/s)

3328 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 285

3.29 TFLOPS

Radeon Pro W6900X +569%

22.02 TFLOPS

Radeon R9 285

VS

Radeon Pro W6900X

Graphics Card

Sep 2014

Release Date

Aug 2021

Volcanic Islands

Generation

Radeon Pro Mac

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2150 MHz

1375 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

32GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

176.0GB/s

Bandwidth

512.0GB/s

Render Config

28

Compute Units

80

-

1792

Shading Units

5120

112

TMUs

320

32

ROPs

128

-

RT Cores

80

16 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

29.38 GPixel/s

Pixel Rate

275.2 GPixel/s

102.8 GTexel/s

Texture Rate

688.0 GTexel/s

3.290 TFLOPS

FP16 (half)

44.03 TFLOPS

3.290 TFLOPS

FP32 (float)

22.02 TFLOPS

205.6 GFLOPS

FP64 (double)

1376 GFLOPS

Board Design

190W

TDP

300W

450 W

Suggested PSU

700 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x HDMI 2.1 4x Thunderbolt

2x 6-pin

Power Connectors

None

Graphics Processor

Tonga

GPU Name

Navi 21

Tonga PRO (215-0851128)

GPU Variant

Navi 21 Pro-XTA

GCN 3.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

5 billion

Transistors

26.8 billion

366 mm²

Die Size

520 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2.170

Vulkan

1.3

-

6.5

Shader Model

6.5

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