AMD Radeon Pro Vega 20 vs ATI Mobility Radeon HD 3870 X2

VS

AMD Radeon Pro Vega 20 ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro Vega 20 and 512MB VRAM Mobility Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro Vega 20 's Advantages

Released 10 years and 2 months late

Boost Clock1283MHz

Larger VRAM bandwidth (189.4GB/s vs 54.40GB/s)

960 additional rendering cores

Lower TDP (100W vs 110W)

Score

Benchmark

FP32 (float)

Radeon Pro Vega 20 +678%

3.284 TFLOPS

Mobility Radeon HD 3870 X2

0.422 TFLOPS

Radeon Pro Vega 20

VS

Mobility Radeon HD 3870 X2

Graphics Card

Nov 2018

Release Date

Sep 2008

Radeon Pro Mac

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

815 MHz

Base Clock

-

1283 MHz

Boost Clock

-

740 MHz

Memory Clock

850 MHz

Memory

4GB

Memory Size

512MB

HBM2

Memory Type

GDDR3

1024bit

Memory Bus

256bit

189.4GB/s

Bandwidth

54.40GB/s

Render Config

-

SM Count

-

20

Compute Units

4

1280

Shading Units

320

80

TMUs

16

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

1024 KB

L2 Cache

256 KB

Theoretical Performance

41.06 GPixel/s

Pixel Rate

10.56 GPixel/s

102.6 GTexel/s

Texture Rate

10.56 GTexel/s

6.569 TFLOPS

FP16 (half)

-

3.284 TFLOPS

FP32 (float)

422.4 GFLOPS

205.3 GFLOPS

FP64 (double)

84.48 GFLOPS

Graphics Processor

Vega 12

GPU Name

M88

Vega 12 XTA

GPU Variant

-

GCN 5.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

Unknown

Transistors

0.666 billion

Unknown

Die Size

192 mm²

Board Design

100W

TDP

110W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (12_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

4.1

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