AMD Radeon Pro W6800X Duo vs AMD Radeon Sky 900

VS

AMD Radeon Pro W6800X Duo

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro W6800X Duo 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 W6800X Duo 's Advantages

Released 8 years and 5 months late

Boost Clock has increased by 107% (1967MHz vs 950MHz)

More VRAM (32GB vs 3GB)

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

2048 additional rendering cores

AMD Radeon Sky 900 's Advantages

Lower TDP (300W vs 400W)

Score

Benchmark

FP32 (float)

Radeon Pro W6800X Duo +343%

15.11 TFLOPS

Radeon Sky 900

3.405 TFLOPS

Radeon Pro W6800X Duo

VS

Radeon Sky 900

Graphics Card

Aug 2021

Release Date

Mar 2013

Radeon Pro Mac

Generation

Radeon Sky

Desktop

Type

Desktop

Apple MPX

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

825 MHz

1967 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

60

Compute Units

28

-

3840

Shading Units

1792

240

TMUs

112

96

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

128 MB

L3 Cache

-

Theoretical Performance

188.8 GPixel/s

Pixel Rate

30.40 GPixel/s

472.1 GTexel/s

Texture Rate

106.4 GTexel/s

30.21 TFLOPS

FP16 (half)

-

15.11 TFLOPS

FP32 (float)

3.405 TFLOPS

944.2 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

400W

TDP

300W

800 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-XLA

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

-

6.7

Shader Model

5.1

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