AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce GTX 980MX

VS

AMD Radeon HD 6490M Mac Edition

NVIDIA GeForce GTX 980MX

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 8GB VRAM GeForce GTX 980MX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 980MX 's Advantages

Released 5 years and 1 months late

Boost Clock1178MHz

More VRAM (8GB vs 256GB)

Larger VRAM bandwidth (192.0GB/s vs 25.41GB/s)

1504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

GeForce GTX 980MX +1533%

3.92 TFLOPS

Radeon HD 6490M Mac Edition

VS

GeForce GTX 980MX

Graphics Card

May 2011

Release Date

Jun 2016

Vancouver

Generation

GeForce 900M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1050 MHz

-

Boost Clock

1178 MHz

794 MHz

Memory Clock

1500 MHz

Memory

256MB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

256bit

25.41GB/s

Bandwidth

192.0GB/s

Render Config

2

Compute Units

-

160

Shading Units

1664

8

TMUs

104

4

ROPs

64

-

8 KB (per CU)

L1 Cache

48 KB (per SMM)

128 KB

L2 Cache

2 MB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

75.39 GPixel/s

6.000 GTexel/s

Texture Rate

122.5 GTexel/s

-

240.0 GFLOPS

FP32 (float)

3.920 TFLOPS

-

FP64 (double)

122.5 GFLOPS

Board Design

Unknown

TDP

148W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

GM204

Seymour XTX M2 (216-0809000)

GPU Variant

N16E-GXX-A1

TeraScale 2

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

5.2 billion

67 mm²

Die Size

398 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.2

5.0

Shader Model

6.4

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