NVIDIA GeForce GT 445M vs ATI Mobility Radeon HD 3870 X2

VS

NVIDIA GeForce GT 445M ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 445M and 512MB VRAM Mobility Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 445M 's Advantages

Released 2 years late

More VRAM (1024GB vs 512GB)

Lower TDP (35W vs 110W)

ATI Mobility Radeon HD 3870 X2 's Advantages

Larger VRAM bandwidth (54.40GB/s vs 40.00GB/s)

176 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 445M

0.328 TFLOPS

Mobility Radeon HD 3870 X2 +28%

0.422 TFLOPS

GeForce GT 445M

VS

Mobility Radeon HD 3870 X2

Graphics Card

Sep 2010

Release Date

Sep 2008

GeForce 400M

Generation

M8x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

625 MHz

Memory Clock

850 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

40.00GB/s

Bandwidth

54.40GB/s

Render Config

3

SM Count

-

Compute Units

4

144

Shading Units

320

24

TMUs

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

-

256 KB

L2 Cache

256 KB

Theoretical Performance

3.420 GPixel/s

Pixel Rate

10.56 GPixel/s

13.68 GTexel/s

Texture Rate

10.56 GTexel/s

-

FP16 (half)

-

328.3 GFLOPS

FP32 (float)

422.4 GFLOPS

27.36 GFLOPS

FP64 (double)

84.48 GFLOPS

Graphics Processor

GF106

GPU Name

M88

N11E-GE-A1

GPU Variant

-

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

0.666 billion

238 mm²

Die Size

192 mm²

Board Design

35W

TDP

110W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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