NVIDIA GeForce GTX 660 Ti vs ATI Radeon HD 5850

VS

NVIDIA GeForce GTX 660 Ti ATI Radeon HD 5850

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 1024MB VRAM Radeon HD 5850 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 2 years and 11 months late

Boost Clock980MHz

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (144.2GB/s vs 128.0GB/s)

Lower TDP (150W vs 151W)

ATI Radeon HD 5850 's Advantages

96 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti +26%

2.634 TFLOPS

Radeon HD 5850

2.088 TFLOPS

GeForce GTX 660 Ti

VS

Radeon HD 5850

Graphics Card

Aug 2012

Release Date

Sep 2009

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

GDDR5

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

128.0GB/s

Render Config

-

SM Count

-

Compute Units

18

1344

Shading Units

1440

112

TMUs

72

24

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

512 KB

Theoretical Performance

27.44 GPixel/s

Pixel Rate

23.20 GPixel/s

109.8 GTexel/s

Texture Rate

52.20 GTexel/s

-

FP16 (half)

-

2.634 TFLOPS

FP32 (float)

2.088 TFLOPS

109.8 GFLOPS

FP64 (double)

417.6 GFLOPS

Graphics Processor

GK104

GPU Name

Cypress

GK104-300-KD-A2

GPU Variant

Cypress PRO (215-0735043)

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

2.154 billion

294 mm²

Die Size

334 mm²

Board Design

150W

TDP

151W

450 W

Suggested PSU

450 W

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

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

2x 6-pin

Power Connectors

2x 6-pin

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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