AMD Radeon RX 6800S vs AMD Radeon Pro 555X

VS

We compared two Mobile platform GPUs: 8GB VRAM Radeon RX 6800S and 4GB VRAM Radeon Pro 555X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800S 's Advantages

Released 3 years and 6 months late

Boost Clock2100MHz

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 94.08GB/s)

1280 additional rendering cores

AMD Radeon Pro 555X 's Advantages

Lower TDP (75W vs 100W)

Score

Benchmark

FP32 (float)

Radeon RX 6800S +517%

8.602 TFLOPS

Radeon Pro 555X

1.393 TFLOPS

Radeon RX 6800S

VS

Radeon Pro 555X

Graphics Card

Jan 2022

Release Date

Jul 2018

Mobility Radeon

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1800 MHz

Base Clock

-

2100 MHz

Boost Clock

-

2000 MHz

Memory Clock

1470 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

256.0GB/s

Bandwidth

94.08GB/s

Render Config

-

SM Count

-

32

Compute Units

12

2048

Shading Units

768

128

TMUs

48

64

ROPs

16

-

Tensor Cores

-

32

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

1024 KB

Theoretical Performance

134.4 GPixel/s

Pixel Rate

14.51 GPixel/s

268.8 GTexel/s

Texture Rate

43.54 GTexel/s

17.20 TFLOPS

FP16 (half)

1393 GFLOPS

8.602 TFLOPS

FP32 (float)

1393 GFLOPS

537.6 GFLOPS

FP64 (double)

87.07 GFLOPS

Graphics Processor

Navi 23

GPU Name

Polaris 21

-

GPU Variant

Polaris 21 PRO

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

11.06 billion

Transistors

3 billion

237 mm²

Die Size

123 mm²

Board Design

100W

TDP

75W

-

Suggested PSU

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.4

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