AMD Radeon HD 6870M vs NVIDIA GeForce GTX 680M

VS

AMD Radeon HD 6870M

NVIDIA GeForce GTX 680M

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

Main Differences

AMD Radeon HD 6870M 's Advantages

Lower TDP (50W vs 100W)

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

Score

Benchmark

FP32 (float)

Radeon HD 6870M

1.08 TFLOPS

GeForce GTX 680M +88%

2.038 TFLOPS

Radeon HD 6870M

VS

GeForce GTX 680M

Graphics Card

Jan 2011

Release Date

Jun 2012

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

MXM-B (3.0)

Clock Speeds

-

Base Clock

719 MHz

-

Boost Clock

758 MHz

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

115.2GB/s

Render Config

10

Compute Units

-

800

Shading Units

1344

40

TMUs

112

16

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

10.80 GPixel/s

Pixel Rate

21.22 GPixel/s

27.00 GTexel/s

Texture Rate

84.90 GTexel/s

-

1080 GFLOPS

FP32 (float)

2.038 TFLOPS

-

FP64 (double)

84.90 GFLOPS

Board Design

50W

TDP

100W

-

No outputs

Outputs

No outputs

-

Power Connectors

None

Graphics Processor

Granville

GPU Name

GK104

Granville XT (216-0769024)

GPU Variant

N13E-GTX-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

3.54 billion

166 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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