AMD Radeon HD 6850M vs AMD Radeon Pro Vega 20

VS

AMD Radeon HD 6850M AMD Radeon Pro Vega 20

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6850M and 4GB VRAM Radeon Pro Vega 20 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850M 's Advantages

Lower TDP (50W vs 100W)

AMD Radeon Pro Vega 20 's Advantages

Released 7 years and 10 months late

Boost Clock1283MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (189.4GB/s vs 25.60GB/s)

480 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850M

1.08 TFLOPS

Radeon Pro Vega 20 +204%

3.284 TFLOPS

Radeon HD 6850M

VS

Radeon Pro Vega 20

Graphics Card

Jan 2011

Release Date

Nov 2018

Vancouver

Generation

Radeon Pro Mac

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

815 MHz

-

Boost Clock

1283 MHz

800 MHz

Memory Clock

740 MHz

Memory

1024MB

Memory Size

4GB

GDDR3

Memory Type

HBM2

128bit

Memory Bus

1024bit

25.60GB/s

Bandwidth

189.4GB/s

Render Config

-

SM Count

-

10

Compute Units

20

800

Shading Units

1280

40

TMUs

80

16

ROPs

32

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

Theoretical Performance

10.80 GPixel/s

Pixel Rate

41.06 GPixel/s

27.00 GTexel/s

Texture Rate

102.6 GTexel/s

-

FP16 (half)

6.569 TFLOPS

1080 GFLOPS

FP32 (float)

3.284 TFLOPS

-

FP64 (double)

205.3 GFLOPS

Graphics Processor

Granville

GPU Name

Vega 12

Granville PRO

GPU Variant

Vega 12 XTA

TeraScale 2

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

1.04 billion

Transistors

Unknown

166 mm²

Die Size

Unknown

Board Design

50W

TDP

100W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

CUDA

-

5.0

Shader Model

6.3

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