AMD Radeon HD 6670A vs NVIDIA GeForce GT 740A

VS

AMD Radeon HD 6670A

NVIDIA GeForce GT 740A

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6670A and 2GB VRAM GeForce GT 740A to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670A 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 14.40GB/s)

96 additional rendering cores

NVIDIA GeForce GT 740A 's Advantages

Released 2 years and 4 months late

More VRAM (2GB vs 1024GB)

Lower TDP (33W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 6670A

0.576 TFLOPS

GeForce GT 740A +30%

0.753 TFLOPS

Radeon HD 6670A

VS

GeForce GT 740A

Graphics Card

Apr 2011

Release Date

Aug 2013

All-In-One

Generation

GeForce 700A

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

1000 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

64.00GB/s

Bandwidth

14.40GB/s

Render Config

6

Compute Units

-

480

Shading Units

384

24

TMUs

32

8

ROPs

8

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

7.840 GPixel/s

14.40 GTexel/s

Texture Rate

31.36 GTexel/s

-

576.0 GFLOPS

FP32 (float)

752.6 GFLOPS

-

FP64 (double)

31.36 GFLOPS

Board Design

45W

TDP

33W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Turks

GPU Name

GK208

Turks XT (215-0803000)

GPU Variant

GT 740M

TeraScale 2

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.02 billion

118 mm²

Die Size

87 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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