NVIDIA GeForce GTX 680M vs ATI Mobility Radeon HD 3450

VS

NVIDIA GeForce GTX 680M

ATI Mobility Radeon HD 3450

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 256MB VRAM Mobility Radeon HD 3450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680M 's Advantages

Released 4 years and 5 months late

Boost Clock758MHz

More VRAM (4GB vs 256GB)

Larger VRAM bandwidth (115.2GB/s vs 6.400GB/s)

1304 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 680M +4995%

2.038 TFLOPS

Mobility Radeon HD 3450

0.04 TFLOPS

GeForce GTX 680M

VS

Mobility Radeon HD 3450

Graphics Card

Jun 2012

Release Date

Jan 2008

GeForce 600M

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-II

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

900 MHz

Memory Clock

400 MHz

Memory

4GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

6.400GB/s

Render Config

-

Compute Units

2

-

1344

Shading Units

40

112

TMUs

4

32

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

21.22 GPixel/s

Pixel Rate

2.000 GPixel/s

84.90 GTexel/s

Texture Rate

2.000 GTexel/s

-

2.038 TFLOPS

FP32 (float)

40.00 GFLOPS

84.90 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

M82

N13E-GTX-A2

GPU Variant

M82-SCE XT (216-0707011)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

3.54 billion

Transistors

0.181 billion

294 mm²

Die Size

67 mm²

Graphics Features

12 (11_0)

DirectX

10.1

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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