AMD Radeon Pro W6900X vs AMD Radeon Sky 900

VS

AMD Radeon Pro W6900X

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6900X and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6900X 's Advantages

Released 8 years and 5 months late

Boost Clock has increased by 126% (2150MHz vs 950MHz)

More VRAM (32GB vs 3GB)

Larger VRAM bandwidth (512.0GB/s vs 240.0GB/s)

3328 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon Pro W6900X +546%

22.02 TFLOPS

Radeon Sky 900

3.405 TFLOPS

Radeon Pro W6900X

VS

Radeon Sky 900

Graphics Card

Aug 2021

Release Date

Mar 2013

Radeon Pro Mac

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

825 MHz

2150 MHz

Boost Clock

950 MHz

2000 MHz

Memory Clock

1250 MHz

Memory

32GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

512.0GB/s

Bandwidth

240.0GB/s

Render Config

80

Compute Units

28

-

5120

Shading Units

1792

320

TMUs

112

128

ROPs

32

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

128 MB

L3 Cache

-

Theoretical Performance

275.2 GPixel/s

Pixel Rate

30.40 GPixel/s

688.0 GTexel/s

Texture Rate

106.4 GTexel/s

44.03 TFLOPS

FP16 (half)

-

22.02 TFLOPS

FP32 (float)

3.405 TFLOPS

1376 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

300W

TDP

300W

700 W

Suggested PSU

700 W

1x HDMI 2.1 4x Thunderbolt

Outputs

1x DVI 1x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

Navi 21

GPU Name

Tahiti

Navi 21 Pro-XTA

GPU Variant

Orthrus

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

4.313 billion

520 mm²

Die Size

352 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.5

Shader Model

5.1

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