AMD Radeon HD 6490M Mac Edition vs NVIDIA GeForce GTX 660M Mac Edition

VS

AMD Radeon HD 6490M Mac Edition

NVIDIA GeForce GTX 660M Mac Edition

We compared two Mobile platform GPUs: 256MB VRAM Radeon HD 6490M Mac Edition and 512MB VRAM GeForce GTX 660M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660M Mac Edition 's Advantages

Released 1 years and 11 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (80.00GB/s vs 25.41GB/s)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490M Mac Edition

0.24 TFLOPS

GeForce GTX 660M Mac Edition +204%

0.73 TFLOPS

Radeon HD 6490M Mac Edition

VS

GeForce GTX 660M Mac Edition

Graphics Card

May 2011

Release Date

Apr 2013

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

794 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

128bit

25.41GB/s

Bandwidth

80.00GB/s

Render Config

2

Compute Units

-

160

Shading Units

384

8

TMUs

32

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.000 GPixel/s

Pixel Rate

7.600 GPixel/s

6.000 GTexel/s

Texture Rate

30.40 GTexel/s

-

240.0 GFLOPS

FP32 (float)

729.6 GFLOPS

-

FP64 (double)

30.40 GFLOPS

Board Design

Unknown

TDP

50W

-

Portable Device Dependent

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Seymour

GPU Name

GK107

Seymour XTX M2 (216-0809000)

GPU Variant

-

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.27 billion

67 mm²

Die Size

118 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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