AMD Radeon HD 6870M vs NVIDIA GeForce GTX 680MX Mac Edition

VS

AMD Radeon HD 6870M

NVIDIA GeForce GTX 680MX Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6870M and 2GB VRAM GeForce GTX 680MX Mac Edition 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 122W)

NVIDIA GeForce GTX 680MX Mac Edition 's Advantages

Released 1 years and 9 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 64.00GB/s)

736 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6870M

1.08 TFLOPS

GeForce GTX 680MX Mac Edition +104%

2.209 TFLOPS

Radeon HD 6870M

VS

GeForce GTX 680MX Mac Edition

Graphics Card

Jan 2011

Release Date

Oct 2012

Vancouver

Generation

GeForce 600M

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

160.0GB/s

Render Config

10

Compute Units

-

800

Shading Units

1536

40

TMUs

128

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

23.01 GPixel/s

27.00 GTexel/s

Texture Rate

92.03 GTexel/s

-

1080 GFLOPS

FP32 (float)

2.209 TFLOPS

-

FP64 (double)

92.03 GFLOPS

Board Design

50W

TDP

122W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Granville

GPU Name

GK104

Granville XT (216-0769024)

GPU Variant

N13E-GTX2-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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