AMD Radeon HD 6670A vs NVIDIA GeForce GT 755M Mac Edition

VS

AMD Radeon HD 6670A

NVIDIA GeForce GT 755M Mac Edition

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 6670A and 1024MB VRAM GeForce GT 755M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670A 's Advantages

96 additional rendering cores

Lower TDP (45W vs 50W)

NVIDIA GeForce GT 755M Mac Edition 's Advantages

Released 2 years and 7 months late

Larger VRAM bandwidth (80.00GB/s vs 64.00GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 6670A

0.576 TFLOPS

GeForce GT 755M Mac Edition +44%

0.833 TFLOPS

Radeon HD 6670A

VS

GeForce GT 755M Mac Edition

Graphics Card

Apr 2011

Release Date

Nov 2013

All-In-One

Generation

GeForce 700M

Mobile

Type

Mobile

MXM-A (3.0)

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

64.00GB/s

Bandwidth

80.00GB/s

Render Config

6

Compute Units

-

480

Shading Units

384

24

TMUs

32

8

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.800 GPixel/s

Pixel Rate

8.680 GPixel/s

14.40 GTexel/s

Texture Rate

34.72 GTexel/s

-

576.0 GFLOPS

FP32 (float)

833.3 GFLOPS

-

FP64 (double)

34.72 GFLOPS

Board Design

45W

TDP

50W

-

No outputs

Outputs

No outputs

-

Graphics Processor

Turks

GPU Name

GK107

Turks XT (215-0803000)

GPU Variant

GT 755M

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

1.27 billion

118 mm²

Die Size

118 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

3.0

5.0

Shader Model

5.1

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