NVIDIA GeForce GTX 680M vs AMD Radeon HD 6870M

VS

NVIDIA GeForce GTX 680M

AMD Radeon HD 6870M

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 1024MB VRAM Radeon HD 6870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680M 's Advantages

Released 1 years and 5 months late

Boost Clock758MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (115.2GB/s vs 64.00GB/s)

544 additional rendering cores

AMD Radeon HD 6870M 's Advantages

Lower TDP (50W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 680M +88%

2.038 TFLOPS

Radeon HD 6870M

1.08 TFLOPS

GeForce GTX 680M

VS

Radeon HD 6870M

Graphics Card

Jun 2012

Release Date

Jan 2011

GeForce 600M

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

900 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

10

-

1344

Shading Units

800

112

TMUs

40

32

ROPs

16

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

21.22 GPixel/s

Pixel Rate

10.80 GPixel/s

84.90 GTexel/s

Texture Rate

27.00 GTexel/s

-

2.038 TFLOPS

FP32 (float)

1080 GFLOPS

84.90 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

Granville

N13E-GTX-A2

GPU Variant

Granville XT (216-0769024)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

1.04 billion

294 mm²

Die Size

166 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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