NVIDIA GeForce GT 445M vs ATI Mobility Radeon HD 4870

VS

NVIDIA GeForce GT 445M

ATI Mobility Radeon HD 4870

We compared two Mobile platform GPUs: 1024MB VRAM GeForce GT 445M and 512MB VRAM Mobility Radeon HD 4870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 445M 's Advantages

Released 1 years and 8 months late

More VRAM (1024GB vs 512GB)

ATI Mobility Radeon HD 4870 's Advantages

Larger VRAM bandwidth (56.83GB/s vs 40.00GB/s)

656 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 445M

0.328 TFLOPS

Mobility Radeon HD 4870 +168%

0.88 TFLOPS

GeForce GT 445M

VS

Mobility Radeon HD 4870

Graphics Card

Sep 2010

Release Date

Jan 2009

GeForce 400M

Generation

M9x

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

625 MHz

Memory Clock

888 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

40.00GB/s

Bandwidth

56.83GB/s

Render Config

-

Compute Units

10

3

SM Count

-

144

Shading Units

800

24

TMUs

40

16

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

3.420 GPixel/s

Pixel Rate

8.800 GPixel/s

13.68 GTexel/s

Texture Rate

22.00 GTexel/s

-

328.3 GFLOPS

FP32 (float)

880.0 GFLOPS

27.36 GFLOPS

FP64 (double)

176.0 GFLOPS

Board Design

35W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

-

Power Connectors

None

Graphics Processor

GF106

GPU Name

M98

N11E-GE-A1

GPU Variant

M98 XT L2 (216-0732023)

Fermi

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

0.956 billion

238 mm²

Die Size

256 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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