AMD Radeon R9 M485X vs Intel Arc A770M

VS

AMD Radeon R9 M485X

Intel Arc A770M

We compared two Mobile platform GPUs: 8GB VRAM Radeon R9 M485X and 16GB VRAM Arc A770M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel Arc A770M 's Advantages

Released 5 years and 8 months late

Boost Clock1650MHz

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 160.0GB/s)

2048 additional rendering cores

Lower TDP (120W vs 250W)

Score

Benchmark

FP32 (float)

Radeon R9 M485X

2.961 TFLOPS

Arc A770M +356%

13.52 TFLOPS

Radeon R9 M485X

VS

Arc A770M

Graphics Card

May 2016

Release Date

Jan 2022

Crystal System

Generation

Alchemist

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

300 MHz

-

Boost Clock

1650 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

512.0GB/s

Render Config

32

Compute Units

-

2048

Shading Units

4096

128

TMUs

256

32

ROPs

128

-

RT Cores

32

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

16 MB

-

Theoretical Performance

23.14 GPixel/s

Pixel Rate

211.2 GPixel/s

92.54 GTexel/s

Texture Rate

422.4 GTexel/s

2.961 TFLOPS

FP16 (half)

27.03 TFLOPS

2.961 TFLOPS

FP32 (float)

13.52 TFLOPS

185.1 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

120W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

Amethyst

GPU Name

DG2-512

Amethyst XT

GPU Variant

ACM-G10

GCN 3.0

Architecture

Generation 12.7

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

5 billion

Transistors

21.7 billion

366 mm²

Die Size

406 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

6.3

Shader Model

6.6

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