ATI Mobility Radeon HD 3470 vs NVIDIA GeForce GT 640M

VS

ATI Mobility Radeon HD 3470

NVIDIA GeForce GT 640M

We compared two Mobile platform GPUs: 256MB VRAM Mobility Radeon HD 3470 and 2GB VRAM GeForce GT 640M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640M 's Advantages

Released 4 years and 2 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (28.80GB/s vs 6.400GB/s)

344 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3470

0.054 TFLOPS

GeForce GT 640M +788%

0.48 TFLOPS

Mobility Radeon HD 3470

VS

GeForce GT 640M

Graphics Card

Jan 2008

Release Date

Mar 2012

M8x

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-II

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

DDR3

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

28.80GB/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

2.720 GPixel/s

Pixel Rate

5.000 GPixel/s

2.720 GTexel/s

Texture Rate

20.00 GTexel/s

-

54.40 GFLOPS

FP32 (float)

480.0 GFLOPS

-

FP64 (double)

20.00 GFLOPS

Board Design

Unknown

TDP

32W

-

Portable Device Dependent

Outputs

No outputs

-

Graphics Processor

M82

GPU Name

GK107

M82-ME XT (216-0707009)

GPU Variant

N13P-GS

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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