NVIDIA GeForce GTX 660 Ti vs AMD Radeon R9 270X

VS

NVIDIA GeForce GTX 660 Ti

AMD Radeon R9 270X

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 2GB VRAM Radeon R9 270X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

64 additional rendering cores

Lower TDP (150W vs 180W)

AMD Radeon R9 270X 's Advantages

Released 1 years and 2 months late

Boost Clock has increased by 7% (1050MHz vs 980MHz)

Larger VRAM bandwidth (179.2GB/s vs 144.2GB/s)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti

2.634 TFLOPS

Radeon R9 270X +2%

2.688 TFLOPS

3DMark Time Spy

GeForce GTX 660 Ti

1627

Radeon R9 270X +8%

1769

GeForce GTX 660 Ti

VS

Radeon R9 270X

Graphics Card

Aug 2012

Release Date

Oct 2013

GeForce 600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

1000 MHz

980 MHz

Boost Clock

1050 MHz

1502 MHz

Memory Clock

1400 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

179.2GB/s

Render Config

-

Compute Units

20

-

1344

Shading Units

1280

112

TMUs

80

24

ROPs

32

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

33.60 GPixel/s

109.8 GTexel/s

Texture Rate

84.00 GTexel/s

-

2.634 TFLOPS

FP32 (float)

2.688 TFLOPS

109.8 GFLOPS

FP64 (double)

168.0 GFLOPS

Board Design

150W

TDP

180W

450 W

Suggested PSU

450 W

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

Outputs

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

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

GK104

GPU Name

Curacao

GK104-300-KD-A2

GPU Variant

Curacao XT (215-0848004)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

2.8 billion

294 mm²

Die Size

212 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.1

Vulkan

1.2

3.0

CUDA

-

5.1

Shader Model

5.1

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