NVIDIA GeForce GTX 680M vs AMD Radeon R5 A255

VS

NVIDIA GeForce GTX 680M AMD Radeon R5 A255

We compared two Mobile platform GPUs: 4GB VRAM GeForce GTX 680M and 1024MB VRAM Radeon R5 A255 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 1GB)

Larger VRAM bandwidth (115.2GB/s vs 64.00GB/s)

960 additional rendering cores

AMD Radeon R5 A255 's Advantages

Released 1 years and 7 months late

Boost Clock has increased by 24% (940MHz vs 758MHz)

Score

Benchmark

FP32 (float)

GeForce GTX 680M +182%

2.038 TFLOPS

Radeon R5 A255

0.721 TFLOPS

GeForce GTX 680M

VS

Radeon R5 A255

Graphics Card

Jun 2012

Release Date

Jan 2014

GeForce 600M

Generation

All-In-One

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

940 MHz

900 MHz

Memory Clock

1000 MHz

Memory

4GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

115.2GB/s

Bandwidth

64.00GB/s

Render Config

-

SM Count

-

Compute Units

6

1344

Shading Units

384

112

TMUs

24

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

Theoretical Performance

21.22 GPixel/s

Pixel Rate

7.520 GPixel/s

84.90 GTexel/s

Texture Rate

22.56 GTexel/s

-

FP16 (half)

-

2.038 TFLOPS

FP32 (float)

721.9 GFLOPS

84.90 GFLOPS

FP64 (double)

-

Graphics Processor

GK104

GPU Name

Topaz

N13E-GTX-A2

GPU Variant

Topaz PRO (216-0858030)

Kepler

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.55 billion

294 mm²

Die Size

125 mm²

Board Design

100W

TDP

Unknown

-

Suggested PSU

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.2.170

3.0

CUDA

-

5.1

Shader Model

6.5

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