NVIDIA GeForce GTX 680M vs AMD Radeon HD 6625M

VS

NVIDIA GeForce GTX 680M

AMD Radeon HD 6625M

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 1024MB VRAM Radeon HD 6625M 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 25.60GB/s)

864 additional rendering cores

AMD Radeon HD 6625M 's Advantages

Lower TDP (26W vs 100W)

Score

Benchmark

FP32 (float)

GeForce GTX 680M +371%

2.038 TFLOPS

Radeon HD 6625M

0.432 TFLOPS

GeForce GTX 680M

VS

Radeon HD 6625M

Graphics Card

Jun 2012

Release Date

Jan 2011

GeForce 600M

Generation

Vancouver

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 2.0 x16

Clock Speeds

719 MHz

Base Clock

-

758 MHz

Boost Clock

-

900 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

6

-

1344

Shading Units

480

112

TMUs

24

32

ROPs

8

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

21.22 GPixel/s

Pixel Rate

3.600 GPixel/s

84.90 GTexel/s

Texture Rate

10.80 GTexel/s

-

2.038 TFLOPS

FP32 (float)

432.0 GFLOPS

84.90 GFLOPS

FP64 (double)

-

Board Design

100W

TDP

26W

-

No outputs

Outputs

No outputs

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

Whistler

N13E-GTX-A2

GPU Variant

Whistler LP

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.716 billion

294 mm²

Die Size

104 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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