NVIDIA GeForce GTX 555 OEM vs NVIDIA GeForce GTX 660 Rev. 2

VS

NVIDIA GeForce GTX 555 OEM

NVIDIA GeForce GTX 660 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 555 OEM and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 3 years and 4 months late

Boost Clock1032MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 91.87GB/s)

672 additional rendering cores

Lower TDP (140W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 555 OEM

0.848 TFLOPS

GeForce GTX 660 Rev. 2 +133%

1.981 TFLOPS

GeForce GTX 555 OEM

VS

GeForce GTX 660 Rev. 2

Graphics Card

May 2011

Release Date

Sep 2014

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

957 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

192bit

91.87GB/s

Bandwidth

144.2GB/s

Render Config

-

6

SM Count

-

288

Shading Units

960

48

TMUs

80

24

ROPs

24

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

384 KB

-

Theoretical Performance

8.832 GPixel/s

Pixel Rate

20.64 GPixel/s

35.33 GTexel/s

Texture Rate

82.56 GTexel/s

-

847.9 GFLOPS

FP32 (float)

1.981 TFLOPS

70.66 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

150W

TDP

140W

450 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GF114

GPU Name

GK104

GF114-200-KB-A1

GPU Variant

-

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

3.54 billion

332 mm²

Die Size

294 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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