NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce GTX 950

VS

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce GTX 950

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 2GB VRAM GeForce GTX 950 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

Larger VRAM bandwidth (144.2GB/s vs 105.8GB/s)

192 additional rendering cores

NVIDIA GeForce GTX 950 's Advantages

Released 11 months late

Boost Clock has increased by 15% (1188MHz vs 1032MHz)

Lower TDP (90W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2 +8%

1.981 TFLOPS

GeForce GTX 950

1.825 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce GTX 950

Graphics Card

Sep 2014

Release Date

Aug 2015

GeForce 600

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

1024 MHz

1032 MHz

Boost Clock

1188 MHz

1502 MHz

Memory Clock

1653 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

105.8GB/s

Render Config

-

960

Shading Units

768

80

TMUs

48

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

48 KB (per SMM)

384 KB

L2 Cache

1024 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

38.02 GPixel/s

82.56 GTexel/s

Texture Rate

57.02 GTexel/s

-

1.981 TFLOPS

FP32 (float)

1.825 TFLOPS

82.56 GFLOPS

FP64 (double)

57.02 GFLOPS

Board Design

140W

TDP

90W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

GK104

GPU Name

GM206

-

GPU Variant

GM206-250-A1

Kepler

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

2.94 billion

294 mm²

Die Size

228 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

5.2

5.1

Shader Model

6.4

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