NVIDIA GeForce GTX 660 Ti vs AMD Radeon 550

VS

NVIDIA GeForce GTX 660 Ti

AMD Radeon 550

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 2GB VRAM Radeon 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Larger VRAM bandwidth (144.2GB/s vs 56.00GB/s)

832 additional rendering cores

AMD Radeon 550 's Advantages

Released 4 years and 8 months late

Boost Clock has increased by 21% (1183MHz vs 980MHz)

Lower TDP (50W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti +117%

2.634 TFLOPS

Radeon 550

1.211 TFLOPS

GeForce GTX 660 Ti

VS

Radeon 550

Graphics Card

Aug 2012

Release Date

Apr 2017

GeForce 600

Generation

Polaris

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

915 MHz

Base Clock

1100 MHz

980 MHz

Boost Clock

1183 MHz

1502 MHz

Memory Clock

1750 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

64bit

144.2GB/s

Bandwidth

56.00GB/s

Render Config

-

Compute Units

8

-

1344

Shading Units

512

112

TMUs

32

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

18.93 GPixel/s

109.8 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

2.634 TFLOPS

FP32 (float)

1211 GFLOPS

109.8 GFLOPS

FP64 (double)

75.71 GFLOPS

Board Design

150W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Lexa

GK104-300-KD-A2

GPU Variant

Lexa PRO (215-0904018)

Kepler

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

28 nm

Process Size

14 nm

3.54 billion

Transistors

2.2 billion

294 mm²

Die Size

103 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.1

Vulkan

1.3

3.0

CUDA

-

5.1

Shader Model

6.7

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