NVIDIA GeForce GT 545 vs NVIDIA GeForce GTX 660

VS

NVIDIA GeForce GT 545

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 545 and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 545 's Advantages

Lower TDP (70W vs 140W)

NVIDIA GeForce GTX 660 's Advantages

Released 1 years and 4 months late

Boost Clock1032MHz

More VRAM (2GB vs 1536GB)

Larger VRAM bandwidth (144.2GB/s vs 38.40GB/s)

816 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 545

0.415 TFLOPS

GeForce GTX 660 +377%

1.981 TFLOPS

GeForce GT 545

VS

GeForce GTX 660

Graphics Card

May 2011

Release Date

Sep 2012

GeForce 500

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

800 MHz

Memory Clock

1502 MHz

Memory

1536MB

Memory Size

2GB

DDR3

Memory Type

GDDR5

192bit

Memory Bus

192bit

38.40GB/s

Bandwidth

144.2GB/s

Render Config

-

3

SM Count

-

144

Shading Units

960

24

TMUs

80

16

ROPs

24

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

384 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

20.64 GPixel/s

17.28 GTexel/s

Texture Rate

82.56 GTexel/s

-

414.7 GFLOPS

FP32 (float)

1.981 TFLOPS

34.56 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

70W

TDP

140W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

1x 6-pin

Graphics Processor

GF116

GPU Name

GK106

-

GPU Variant

GK106-400-A1

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.17 billion

Transistors

2.54 billion

238 mm²

Die Size

221 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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