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

VS

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce GTX 950 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 4GB VRAM GeForce GTX 950 OEM 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 80.19GB/s)

NVIDIA GeForce GTX 950 OEM 's Advantages

Released 1 years and 4 months late

Boost Clock has increased by 17% (1203MHz vs 1032MHz)

More VRAM (4GB vs 2GB)

64 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

GeForce GTX 950 OEM +24%

2.464 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce GTX 950 OEM

Graphics Card

Sep 2014

Release Date

Jan 2016

GeForce 600

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

937 MHz

1032 MHz

Boost Clock

1203 MHz

1502 MHz

Memory Clock

1253 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

80.19GB/s

Render Config

-

960

Shading Units

1024

80

TMUs

64

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

38.50 GPixel/s

82.56 GTexel/s

Texture Rate

76.99 GTexel/s

-

1.981 TFLOPS

FP32 (float)

2.464 TFLOPS

82.56 GFLOPS

FP64 (double)

76.99 GFLOPS

Board Design

140W

TDP

Unknown

300 W

Suggested PSU

200 W

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

Outputs

No outputs

1x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

GM206S

-

GPU Variant

950 OEM

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

6.7

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