AMD Radeon Pro 555X vs AMD Radeon HD 6850M

VS

AMD Radeon Pro 555X

AMD Radeon HD 6850M

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 555X and 1024MB VRAM Radeon HD 6850M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 555X 's Advantages

Released 7 years and 6 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (94.08GB/s vs 25.60GB/s)

AMD Radeon HD 6850M 's Advantages

32 additional rendering cores

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

Radeon Pro 555X +28%

1.393 TFLOPS

Radeon HD 6850M

1.08 TFLOPS

Radeon Pro 555X

VS

Radeon HD 6850M

Graphics Card

Jul 2018

Release Date

Jan 2011

Radeon Pro Mac

Generation

Vancouver

Mobile

Type

Mobile

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1470 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

94.08GB/s

Bandwidth

25.60GB/s

Render Config

12

Compute Units

10

-

768

Shading Units

800

48

TMUs

40

16

ROPs

16

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

14.51 GPixel/s

Pixel Rate

10.80 GPixel/s

43.54 GTexel/s

Texture Rate

27.00 GTexel/s

1393 GFLOPS

FP16 (half)

-

1393 GFLOPS

FP32 (float)

1080 GFLOPS

87.07 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 21

GPU Name

Granville

Polaris 21 PRO

GPU Variant

Granville PRO

GCN 4.0

Architecture

TeraScale 2

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

1.04 billion

123 mm²

Die Size

166 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.1

OpenCL

1.2

Vulkan

N/A

-

6.4

Shader Model

5.0

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