NVIDIA GeForce GTX 680M vs ATI Mobility Radeon HD 4650

VS

NVIDIA GeForce GTX 680M

ATI Mobility Radeon HD 4650

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 512MB VRAM Mobility Radeon HD 4650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680M 's Advantages

Released 3 years and 5 months late

Boost Clock758MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 19.20GB/s)

1024 additional rendering cores

ATI Mobility Radeon HD 4650 's Advantages

Lower TDP (35W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 680M +536%

2.038 TFLOPS

Mobility Radeon HD 4650

0.32 TFLOPS

GeForce GTX 680M

VS

Mobility Radeon HD 4650

Graphics Card

Jun 2012

Release Date

Jan 2009

GeForce 600M

Generation

M9x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

900 MHz

Memory Clock

600 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

19.20GB/s

Render Config

-

Compute Units

4

-

1344

Shading Units

320

112

TMUs

32

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

21.22 GPixel/s

Pixel Rate

4.000 GPixel/s

84.90 GTexel/s

Texture Rate

16.00 GTexel/s

-

2.038 TFLOPS

FP32 (float)

320.0 GFLOPS

84.90 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

35W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

M96

N13E-GTX-A2

GPU Variant

-

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

3.54 billion

Transistors

0.514 billion

294 mm²

Die Size

146 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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