NVIDIA GeForce GTX 660 Ti vs ATI Radeon HD 5690

VS

NVIDIA GeForce GTX 660 Ti

ATI Radeon HD 5690

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 1024MB VRAM Radeon HD 5690 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Released 1 years and 6 months late

Boost Clock980MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 32.00GB/s)

944 additional rendering cores

ATI Radeon HD 5690 's Advantages

Lower TDP (64W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti +324%

2.634 TFLOPS

Radeon HD 5690

0.62 TFLOPS

GeForce GTX 660 Ti

VS

Radeon HD 5690

Graphics Card

Aug 2012

Release Date

Feb 2011

GeForce 600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

32.00GB/s

Render Config

-

Compute Units

5

-

1344

Shading Units

400

112

TMUs

20

24

ROPs

8

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

6.200 GPixel/s

109.8 GTexel/s

Texture Rate

15.50 GTexel/s

-

2.634 TFLOPS

FP32 (float)

620.0 GFLOPS

109.8 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

64W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

-

Graphics Processor

GK104

GPU Name

Redwood

GK104-300-KD-A2

GPU Variant

Redwood XT (215-0757002)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.627 billion

294 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

5.0

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