ATI Mobility Radeon HD 3870 vs NVIDIA GeForce GTX 870M

VS

ATI Mobility Radeon HD 3870

NVIDIA GeForce GTX 870M

We compared two Mobile platform GPUs: 512MB VRAM Mobility Radeon HD 3870 and 3GB VRAM GeForce GTX 870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Mobility Radeon HD 3870 's Advantages

Lower TDP (55W vs 100W)

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 54.40GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Mobility Radeon HD 3870

0.422 TFLOPS

GeForce GTX 870M +515%

2.599 TFLOPS

Mobility Radeon HD 3870

VS

GeForce GTX 870M

Graphics Card

Jun 2008

Release Date

Mar 2014

M8x

Generation

GeForce 800M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

941 MHz

-

Boost Clock

967 MHz

850 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

192bit

54.40GB/s

Bandwidth

120.0GB/s

Render Config

4

Compute Units

-

320

Shading Units

1344

16

TMUs

112

16

ROPs

24

-

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

10.56 GPixel/s

Pixel Rate

27.08 GPixel/s

10.56 GTexel/s

Texture Rate

108.3 GTexel/s

-

422.4 GFLOPS

FP32 (float)

2.599 TFLOPS

84.48 GFLOPS

FP64 (double)

108.3 GFLOPS

Board Design

55W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

M88

GPU Name

GK104

-

GPU Variant

N15E-GT-A2

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.666 billion

Transistors

3.54 billion

192 mm²

Die Size

294 mm²

Graphics Features

10.1 (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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