ATI Radeon HD 5770 vs NVIDIA GeForce GTX 660 Rev. 2

VS

ATI Radeon HD 5770

NVIDIA GeForce GTX 660 Rev. 2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5770 and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5770 's Advantages

Lower TDP (108W vs 140W)

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 4 years and 11 months late

Boost Clock1032MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 76.80GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5770

1.36 TFLOPS

GeForce GTX 660 Rev. 2 +45%

1.981 TFLOPS

Radeon HD 5770

VS

GeForce GTX 660 Rev. 2

Graphics Card

Oct 2009

Release Date

Sep 2014

Evergreen

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

1200 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

76.80GB/s

Bandwidth

144.2GB/s

Render Config

10

Compute Units

-

800

Shading Units

960

40

TMUs

80

16

ROPs

24

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

20.64 GPixel/s

34.00 GTexel/s

Texture Rate

82.56 GTexel/s

-

1360 GFLOPS

FP32 (float)

1.981 TFLOPS

-

FP64 (double)

82.56 GFLOPS

Board Design

108W

TDP

140W

300 W

Suggested PSU

300 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Juniper

GPU Name

GK104

Juniper XT (215-0754013)

GPU Variant

-

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.04 billion

Transistors

3.54 billion

166 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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