NVIDIA GeForce GTX 860M vs ATI Mobility Radeon HD 3870 X2

VS

NVIDIA GeForce GTX 860M

ATI Mobility Radeon HD 3870 X2

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 860M 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 GTX 860M 's Advantages

Released 5 years and 4 months late

Boost Clock1085MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (80.19GB/s vs 54.40GB/s)

320 additional rendering cores

Lower TDP (75W vs 110W)

Score

Benchmark

FP32 (float)

GeForce GTX 860M +229%

1.389 TFLOPS

Mobility Radeon HD 3870 X2

0.422 TFLOPS

GeForce GTX 860M

VS

Mobility Radeon HD 3870 X2

Graphics Card

Jan 2014

Release Date

Sep 2008

GeForce 800M

Generation

M8x

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

1020 MHz

Base Clock

-

1085 MHz

Boost Clock

-

1253 MHz

Memory Clock

850 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

80.19GB/s

Bandwidth

54.40GB/s

Render Config

-

Compute Units

4

-

640

Shading Units

320

40

TMUs

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

-

2 MB

L2 Cache

256 KB

-

Theoretical Performance

17.36 GPixel/s

Pixel Rate

10.56 GPixel/s

43.40 GTexel/s

Texture Rate

10.56 GTexel/s

-

1389 GFLOPS

FP32 (float)

422.4 GFLOPS

43.40 GFLOPS

FP64 (double)

84.48 GFLOPS

Board Design

75W

TDP

110W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GM107

GPU Name

M88

N15P-GX-A1

GPU Variant

-

Maxwell

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.87 billion

Transistors

0.666 billion

148 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

1.3

Vulkan

N/A

5.0

CUDA

-

5.1

Shader Model

4.1

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