Intel Arc A770M vs ATI Mobility Radeon HD 3870

VS

Intel Arc A770M

ATI Mobility Radeon HD 3870

We compared two Mobile platform GPUs: 16GB VRAM Arc A770M and 512MB VRAM Mobility Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel Arc A770M 's Advantages

Released 13 years and 7 months late

Boost Clock1650MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (512.0GB/s vs 54.40GB/s)

3776 additional rendering cores

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 120W)

Score

Benchmark

FP32 (float)

Arc A770M +3103%

13.52 TFLOPS

Mobility Radeon HD 3870

0.422 TFLOPS

Arc A770M

VS

Mobility Radeon HD 3870

Graphics Card

Jan 2022

Release Date

Jun 2008

Alchemist

Generation

M8x

Mobile

Type

Mobile

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

300 MHz

Base Clock

-

1650 MHz

Boost Clock

-

2000 MHz

Memory Clock

850 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

4

-

4096

Shading Units

320

256

TMUs

16

128

ROPs

16

-

32

RT Cores

-

16 MB

L2 Cache

256 KB

-

Theoretical Performance

211.2 GPixel/s

Pixel Rate

10.56 GPixel/s

422.4 GTexel/s

Texture Rate

10.56 GTexel/s

27.03 TFLOPS

FP16 (half)

-

13.52 TFLOPS

FP32 (float)

422.4 GFLOPS

-

FP64 (double)

84.48 GFLOPS

Board Design

120W

TDP

55W

-

No outputs

Outputs

No outputs

-

Graphics Processor

DG2-512

GPU Name

M88

ACM-G10

GPU Variant

-

Generation 12.7

Architecture

TeraScale

TSMC

Foundry

TSMC

6 nm

Process Size

55 nm

21.7 billion

Transistors

0.666 billion

406 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.3

Vulkan

N/A

-

6.6

Shader Model

4.1

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