ATI Mobility Radeon HD 3450 vs NVIDIA GeForce GTX 660M Mac Edition

VS

ATI Mobility Radeon HD 3450

NVIDIA GeForce GTX 660M Mac Edition

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 3450 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 5 years and 3 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (80.00GB/s vs 6.400GB/s)

344 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3450

0.04 TFLOPS

GeForce GTX 660M Mac Edition +1725%

0.73 TFLOPS

Mobility Radeon HD 3450

VS

GeForce GTX 660M Mac Edition

Graphics Card

Jan 2008

Release Date

Apr 2013

M8x

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-II

Bus Interface

MXM-B (3.0)

Clock Speeds

-

400 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

80.00GB/s

Render Config

2

Compute Units

-

40

Shading Units

384

4

TMUs

32

4

ROPs

16

-

L1 Cache

16 KB (per SMX)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.000 GPixel/s

Pixel Rate

7.600 GPixel/s

2.000 GTexel/s

Texture Rate

30.40 GTexel/s

-

40.00 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

M82

GPU Name

GK107

M82-SCE XT (216-0707011)

GPU Variant

-

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.181 billion

Transistors

1.27 billion

67 mm²

Die Size

118 mm²

Graphics Features

10.1

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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