ATI Radeon HD 4670 X2 vs NVIDIA GeForce GTX 660 Ti

VS

ATI Radeon HD 4670 X2

NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4670 X2 's Advantages

Lower TDP (118W vs 150W)

NVIDIA GeForce GTX 660 Ti 's Advantages

Released 3 years and 11 months late

Boost Clock980MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (144.2GB/s vs 22.40GB/s)

1024 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4670 X2

0.48 TFLOPS

GeForce GTX 660 Ti +448%

2.634 TFLOPS

Radeon HD 4670 X2

VS

GeForce GTX 660 Ti

Graphics Card

Sep 2008

Release Date

Aug 2012

Radeon R700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

915 MHz

-

Boost Clock

980 MHz

700 MHz

Memory Clock

1502 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

22.40GB/s

Bandwidth

144.2GB/s

Render Config

4

Compute Units

-

320

Shading Units

1344

32

TMUs

112

8

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

384 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

27.44 GPixel/s

24.00 GTexel/s

Texture Rate

109.8 GTexel/s

-

480.0 GFLOPS

FP32 (float)

2.634 TFLOPS

-

FP64 (double)

109.8 GFLOPS

Board Design

118W

TDP

150W

300 W

Suggested PSU

450 W

4x DVI

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

RV730

GPU Name

GK104

RV730 XT (215-0719047)

GPU Variant

GK104-300-KD-A2

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

3.54 billion

146 mm²

Die Size

294 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.1

Shader Model

5.1

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