NVIDIA GeForce GTX 680M vs AMD Radeon HD 8670M

VS

NVIDIA GeForce GTX 680M

AMD Radeon HD 8670M

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 1024MB VRAM Radeon HD 8670M 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 1024GB)

Larger VRAM bandwidth (115.2GB/s vs 14.40GB/s)

1024 additional rendering cores

AMD Radeon HD 8670M 's Advantages

Released 9 months late

Boost Clock has increased by 29% (975MHz vs 758MHz)

Score

Benchmark

FP32 (float)

GeForce GTX 680M +226%

2.038 TFLOPS

Radeon HD 8670M

0.624 TFLOPS

GeForce GTX 680M

VS

Radeon HD 8670M

Graphics Card

Jun 2012

Release Date

Mar 2013

GeForce 600M

Generation

Solar System

Mobile

Type

Mobile

MXM-B (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

719 MHz

Base Clock

925 MHz

758 MHz

Boost Clock

975 MHz

900 MHz

Memory Clock

900 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

14.40GB/s

Render Config

-

Compute Units

5

-

1344

Shading Units

320

112

TMUs

20

32

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

21.22 GPixel/s

Pixel Rate

7.800 GPixel/s

84.90 GTexel/s

Texture Rate

19.50 GTexel/s

-

2.038 TFLOPS

FP32 (float)

624.0 GFLOPS

84.90 GFLOPS

FP64 (double)

39.00 GFLOPS

Board Design

100W

TDP

Unknown

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Processor

GK104

GPU Name

Sun

N13E-GTX-A2

GPU Variant

Sun S3 XT (216-0841009)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

0.69 billion

294 mm²

Die Size

56 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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