NVIDIA GeForce GTX 660 Rev. 2 vs ATI Radeon HD 3750

VS

NVIDIA GeForce GTX 660 Rev. 2

ATI Radeon HD 3750

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 512MB VRAM Radeon HD 3750 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

Released 6 years late

Boost Clock1032MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (144.2GB/s vs 22.18GB/s)

840 additional rendering cores

ATI Radeon HD 3750 's Advantages

Lower TDP (65W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2 +937%

1.981 TFLOPS

Radeon HD 3750

0.191 TFLOPS

GeForce GTX 660 Rev. 2

VS

Radeon HD 3750

Graphics Card

Sep 2014

Release Date

Sep 2008

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

693 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

22.18GB/s

Render Config

-

Compute Units

3

-

960

Shading Units

120

80

TMUs

8

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

128 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

3.184 GPixel/s

82.56 GTexel/s

Texture Rate

6.368 GTexel/s

-

1.981 TFLOPS

FP32 (float)

191.0 GFLOPS

82.56 GFLOPS

FP64 (double)

-

Board Design

140W

TDP

65W

300 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

RV635

-

GPU Variant

RV635 PRO (215-0682008)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

3.54 billion

Transistors

0.378 billion

294 mm²

Die Size

135 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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