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

VS

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

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

Main Differences

NVIDIA GeForce GTX 980M 's Advantages

Released 3 years and 5 months late

Boost Clock1127MHz

Larger VRAM bandwidth (160.4GB/s vs 25.41GB/s)

1376 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 980M +1342%

3.462 TFLOPS

Radeon HD 6490M Mac Edition

0.24 TFLOPS

GeForce GTX 980M

VS

Radeon HD 6490M Mac Edition

Graphics Card

Oct 2014

Release Date

May 2011

GeForce 900M

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1038 MHz

Base Clock

-

1127 MHz

Boost Clock

-

1253 MHz

Memory Clock

794 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

160.4GB/s

Bandwidth

25.41GB/s

Render Config

-

SM Count

-

Compute Units

2

1536

Shading Units

160

96

TMUs

8

64

ROPs

4

-

Tensor Cores

-

RT Cores

-

48 KB (per SMM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

128 KB

Theoretical Performance

72.13 GPixel/s

Pixel Rate

3.000 GPixel/s

108.2 GTexel/s

Texture Rate

6.000 GTexel/s

-

FP16 (half)

-

3.462 TFLOPS

FP32 (float)

240.0 GFLOPS

108.2 GFLOPS

FP64 (double)

-

Graphics Processor

GM204

GPU Name

Seymour

N16E-GX-A1

GPU Variant

Seymour XTX M2 (216-0809000)

Maxwell 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5.2 billion

Transistors

0.37 billion

398 mm²

Die Size

67 mm²

Board Design

Unknown

TDP

Unknown

-

Suggested PSU

-

Portable Device Dependent

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (12_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

5.2

CUDA

-

6.7 (6.4)

Shader Model

5.0

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