NVIDIA GeForce GT 745A vs AMD Radeon HD 6670A

VS

NVIDIA GeForce GT 745A

AMD Radeon HD 6670A

We compared two Mobile platform GPUs: 2GB VRAM GeForce GT 745A and 1024MB VRAM Radeon HD 6670A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 745A 's Advantages

Released 2 years and 4 months late

Boost Clock915MHz

More VRAM (2GB vs 1024GB)

Lower TDP (33W vs 45W)

AMD Radeon HD 6670A 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 28.80GB/s)

96 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 745A +22%

0.703 TFLOPS

Radeon HD 6670A

0.576 TFLOPS

GeForce GT 745A

VS

Radeon HD 6670A

Graphics Card

Aug 2013

Release Date

Apr 2011

GeForce 700A

Generation

All-In-One

Mobile

Type

Mobile

PCIe 3.0 x16

Bus Interface

MXM-A (3.0)

Clock Speeds

837 MHz

Base Clock

-

915 MHz

Boost Clock

-

900 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

28.80GB/s

Bandwidth

64.00GB/s

Render Config

-

Compute Units

6

-

384

Shading Units

480

32

TMUs

24

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

7.320 GPixel/s

Pixel Rate

4.800 GPixel/s

29.28 GTexel/s

Texture Rate

14.40 GTexel/s

-

702.7 GFLOPS

FP32 (float)

576.0 GFLOPS

29.28 GFLOPS

FP64 (double)

-

Board Design

33W

TDP

45W

-

No outputs

Outputs

No outputs

-

Graphics Processor

GK107

GPU Name

Turks

N14P-LP

GPU Variant

Turks XT (215-0803000)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

0.716 billion

118 mm²

Die Size

118 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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