AMD Radeon HD 6490M Mac Edition vs AMD Radeon R9 M390X

VS

AMD Radeon HD 6490M Mac Edition

AMD Radeon R9 M390X

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 4GB VRAM Radeon R9 M390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 M390X 's Advantages

Released 4 years late

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (160.0GB/s vs 25.41GB/s)

1888 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

Radeon R9 M390X +1133%

2.961 TFLOPS

Radeon HD 6490M Mac Edition

VS

Radeon R9 M390X

Graphics Card

May 2011

Release Date

May 2015

Vancouver

Generation

Crystal System

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

794 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

25.41GB/s

Bandwidth

160.0GB/s

Render Config

2

Compute Units

32

-

160

Shading Units

2048

8

TMUs

128

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

23.14 GPixel/s

6.000 GTexel/s

Texture Rate

92.54 GTexel/s

-

FP16 (half)

2.961 TFLOPS

240.0 GFLOPS

FP32 (float)

2.961 TFLOPS

-

FP64 (double)

185.1 GFLOPS

Board Design

Unknown

TDP

75W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

Amethyst

Seymour XTX M2 (216-0809000)

GPU Variant

Amethyst XT

TeraScale 2

Architecture

GCN 3.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

5 billion

67 mm²

Die Size

366 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

Related GPU Comparisons

1

AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce RTX 3080 Mobile

2

AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce MX330

3

AMD Radeon HD 6490M Mac Edition vs AMD Radeon RX 5700M

4

AMD Radeon HD 6490M Mac Edition vs AMD Radeon R9 M270X

5

AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce RTX 3050 Mobile Refresh 6 GB

6

AMD Radeon HD 6490M Mac Edition vs AMD Radeon HD 8730A

7

AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce GT 645M

8

AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce 945A

9

AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce GTX 580M

10

AMD Radeon HD 6490M Mac Edition vs AMD Radeon R5 M230

Related News

1

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

2

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

3

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

4

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

5

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

6

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

7

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

8

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

9

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

10

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU