AMD Radeon Pro 575X vs ATI Mobility Radeon HD 3870

VS

AMD Radeon Pro 575X

ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 4GB VRAM Radeon Pro 575X and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro 575X 's Advantages

Released 10 years and 9 months late

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (217.6GB/s vs 54.40GB/s)

1728 additional rendering cores

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 150W)

Score

Benchmark

FP32 (float)

Radeon Pro 575X +963%

4.489 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Radeon Pro 575X

VS

Mobility Radeon HD 3870

Graphics Card

Mar 2019

Release Date

Jun 2008

Radeon Pro Mac

Generation

M8x

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1700 MHz

Memory Clock

850 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

217.6GB/s

Bandwidth

54.40GB/s

Render Config

32

Compute Units

4

-

2048

Shading Units

320

128

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

2 MB

L2 Cache

256 KB

-

Theoretical Performance

35.07 GPixel/s

Pixel Rate

10.56 GPixel/s

140.3 GTexel/s

Texture Rate

10.56 GTexel/s

4.489 TFLOPS

FP16 (half)

-

4.489 TFLOPS

FP32 (float)

422.4 GFLOPS

280.6 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

150W

TDP

55W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Polaris 20

GPU Name

M88

Polaris 20 XL (215-0910052)

GPU Variant

-

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

5.7 billion

Transistors

0.666 billion

232 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.1

OpenCL

N/A

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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