AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce 940A

VS

AMD Radeon HD 6490M Mac Edition

NVIDIA GeForce 940A

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 1024MB VRAM GeForce 940A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490M Mac Edition 's Advantages

Larger VRAM bandwidth (25.41GB/s vs 16.02GB/s)

NVIDIA GeForce 940A 's Advantages

Released 3 years and 10 months late

Boost Clock1124MHz

More VRAM (1024GB vs 256GB)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

GeForce 940A +259%

0.863 TFLOPS

Radeon HD 6490M Mac Edition

VS

GeForce 940A

Graphics Card

May 2011

Release Date

Mar 2015

Vancouver

Generation

GeForce 900A

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1029 MHz

-

Boost Clock

1124 MHz

794 MHz

Memory Clock

1001 MHz

Memory

256MB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

64bit

25.41GB/s

Bandwidth

16.02GB/s

Render Config

2

Compute Units

-

160

Shading Units

384

8

TMUs

16

4

ROPs

8

-

8 KB (per CU)

L1 Cache

64 KB (per SMM)

128 KB

L2 Cache

1024 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

8.992 GPixel/s

6.000 GTexel/s

Texture Rate

17.98 GTexel/s

-

240.0 GFLOPS

FP32 (float)

863.2 GFLOPS

-

FP64 (double)

26.98 GFLOPS

Board Design

Unknown

TDP

33W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

Seymour

GPU Name

GM108

Seymour XTX M2 (216-0809000)

GPU Variant

-

TeraScale 2

Architecture

Maxwell

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

Unknown

67 mm²

Die Size

Unknown

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

Shader Model

5.1

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