AMD Radeon HD 6670 vs NVIDIA GeForce GT 545

VS

AMD Radeon HD 6670

NVIDIA GeForce GT 545

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6670 and 1536MB VRAM GeForce GT 545 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6670 's Advantages

Larger VRAM bandwidth (64.00GB/s vs 38.40GB/s)

336 additional rendering cores

Lower TDP (66W vs 70W)

NVIDIA GeForce GT 545 's Advantages

More VRAM (1536GB vs 1024GB)

Score

Benchmark

FP32 (float)

Radeon HD 6670 +85%

0.768 TFLOPS

GeForce GT 545

0.415 TFLOPS

Radeon HD 6670

VS

GeForce GT 545

Graphics Card

Apr 2011

Release Date

May 2011

Northern Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

192bit

64.00GB/s

Bandwidth

38.40GB/s

Render Config

6

Compute Units

-

SM Count

3

480

Shading Units

144

24

TMUs

24

8

ROPs

16

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

4.320 GPixel/s

19.20 GTexel/s

Texture Rate

17.28 GTexel/s

-

768.0 GFLOPS

FP32 (float)

414.7 GFLOPS

-

FP64 (double)

34.56 GFLOPS

Board Design

66W

TDP

70W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Turks

GPU Name

GF116

Turks XT (215-0803000)

GPU Variant

-

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.716 billion

Transistors

1.17 billion

118 mm²

Die Size

238 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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