NVIDIA GeForce GTX 870M vs ATI Mobility Radeon HD 3850 X2

VS

NVIDIA GeForce GTX 870M

ATI Mobility Radeon HD 3850 X2

We compared two Mobile platform GPUs: 3GB VRAM GeForce GTX 870M and 512MB VRAM Mobility Radeon HD 3850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 870M 's Advantages

Released 5 years and 9 months late

Boost Clock967MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (120.0GB/s vs 48.00GB/s)

1024 additional rendering cores

ATI Mobility Radeon HD 3850 X2 's Advantages

Lower TDP (70W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 870M +600%

2.599 TFLOPS

Mobility Radeon HD 3850 X2

0.371 TFLOPS

GeForce GTX 870M

VS

Mobility Radeon HD 3850 X2

Graphics Card

Mar 2014

Release Date

Jun 2008

GeForce 800M

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

941 MHz

Base Clock

-

967 MHz

Boost Clock

-

1250 MHz

Memory Clock

750 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

256bit

120.0GB/s

Bandwidth

48.00GB/s

Render Config

-

Compute Units

4

-

1344

Shading Units

320

112

TMUs

16

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.08 GPixel/s

Pixel Rate

9.280 GPixel/s

108.3 GTexel/s

Texture Rate

9.280 GTexel/s

-

2.599 TFLOPS

FP32 (float)

371.2 GFLOPS

108.3 GFLOPS

FP64 (double)

74.24 GFLOPS

Board Design

100W

TDP

70W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

M88

N15E-GT-A2

GPU Variant

-

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

3.54 billion

Transistors

0.666 billion

294 mm²

Die Size

192 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (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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