AMD Radeon R9 270 vs NVIDIA GeForce GTX 660 Ti

VS

AMD Radeon R9 270

NVIDIA GeForce GTX 660 Ti

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

Main Differences

AMD Radeon R9 270 's Advantages

Released 1 years and 3 months late

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

NVIDIA GeForce GTX 660 Ti 's Advantages

Boost Clock has increased by 6% (980MHz vs 925MHz)

64 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R9 270

2.368 TFLOPS

GeForce GTX 660 Ti +11%

2.634 TFLOPS

3DMark Time Spy

Radeon R9 270

1603

GeForce GTX 660 Ti +1%

1627

Radeon R9 270

VS

GeForce GTX 660 Ti

Graphics Card

Nov 2013

Release Date

Aug 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

900 MHz

Base Clock

915 MHz

925 MHz

Boost Clock

980 MHz

1400 MHz

Memory Clock

1502 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

179.2GB/s

Bandwidth

144.2GB/s

Render Config

20

Compute Units

-

1280

Shading Units

1344

80

TMUs

112

32

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

384 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

27.44 GPixel/s

74.00 GTexel/s

Texture Rate

109.8 GTexel/s

-

2.368 TFLOPS

FP32 (float)

2.634 TFLOPS

148.0 GFLOPS

FP64 (double)

109.8 GFLOPS

Board Design

150W

TDP

150W

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

1x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Curacao

GPU Name

GK104

Curacao PRO (215-0848000)

GPU Variant

GK104-300-KD-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.8 billion

Transistors

3.54 billion

212 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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