NVIDIA GeForce GTX 680M vs AMD Radeon HD 8870M

VS

NVIDIA GeForce GTX 680M

AMD Radeon HD 8870M

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 2GB VRAM Radeon HD 8870M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680M 's Advantages

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (115.2GB/s vs 72.00GB/s)

704 additional rendering cores

AMD Radeon HD 8870M 's Advantages

Released 10 months late

Boost Clock has increased by 2% (775MHz vs 758MHz)

Score

Benchmark

FP32 (float)

GeForce GTX 680M +105%

2.038 TFLOPS

Radeon HD 8870M

0.992 TFLOPS

GeForce GTX 680M

VS

Radeon HD 8870M

Graphics Card

Jun 2012

Release Date

Apr 2013

GeForce 600M

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

719 MHz

Base Clock

725 MHz

758 MHz

Boost Clock

775 MHz

900 MHz

Memory Clock

1125 MHz

Memory

4GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

72.00GB/s

Render Config

-

Compute Units

10

-

1344

Shading Units

640

112

TMUs

40

32

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

21.22 GPixel/s

Pixel Rate

12.40 GPixel/s

84.90 GTexel/s

Texture Rate

31.00 GTexel/s

-

2.038 TFLOPS

FP32 (float)

992.0 GFLOPS

84.90 GFLOPS

FP64 (double)

62.00 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

Venus

N13E-GTX-A2

GPU Variant

Venus XT (216-0846000)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.5 billion

294 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

2.1 (1.2)

1.1

Vulkan

1.2.170

3.0

CUDA

-

5.1

Shader Model

6.5 (5.1)

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