AMD Radeon RX 6850M XT vs AMD Radeon Pro 555X

VS

AMD Radeon RX 6850M XT

AMD Radeon Pro 555X

We compared two Mobile platform GPUs: 12GB VRAM Radeon RX 6850M XT 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 6850M XT 's Advantages

Released 3 years and 6 months late

Boost Clock2581MHz

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (384.0GB/s vs 94.08GB/s)

1792 additional rendering cores

AMD Radeon Pro 555X 's Advantages

Lower TDP (75W vs 165W)

Score

Benchmark

FP32 (float)

Radeon RX 6850M XT +848%

13.21 TFLOPS

Radeon Pro 555X

1.393 TFLOPS

Radeon RX 6850M XT

VS

Radeon Pro 555X

Graphics Card

Jan 2022

Release Date

Jul 2018

Mobility Radeon

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

2321 MHz

Base Clock

-

2581 MHz

Boost Clock

-

2000 MHz

Memory Clock

1470 MHz

Memory

12GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

192bit

Memory Bus

128bit

384.0GB/s

Bandwidth

94.08GB/s

Render Config

40

Compute Units

12

-

2560

Shading Units

768

160

TMUs

48

64

ROPs

16

-

40

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

3 MB

L2 Cache

1024 KB

96 MB

L3 Cache

-

Theoretical Performance

165.2 GPixel/s

Pixel Rate

14.51 GPixel/s

413.0 GTexel/s

Texture Rate

43.54 GTexel/s

26.43 TFLOPS

FP16 (half)

1393 GFLOPS

13.21 TFLOPS

FP32 (float)

1393 GFLOPS

825.9 GFLOPS

FP64 (double)

87.07 GFLOPS

Board Design

165W

TDP

75W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 22

GPU Name

Polaris 21

Navi 22 XTM

GPU Variant

Polaris 21 PRO

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

17.2 billion

Transistors

3 billion

335 mm²

Die Size

123 mm²

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

-

6.5

Shader Model

6.4

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