NVIDIA GeForce GTX 660 Ti vs AMD Radeon R7 250XE

VS

NVIDIA GeForce GTX 660 Ti

AMD Radeon R7 250XE

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Ti and 1024MB VRAM Radeon R7 250XE to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 Ti 's Advantages

Boost Clock980MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 72.00GB/s)

704 additional rendering cores

AMD Radeon R7 250XE 's Advantages

Released 2 years late

Lower TDP (80W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Ti +139%

2.634 TFLOPS

Radeon R7 250XE

1.101 TFLOPS

GeForce GTX 660 Ti

VS

Radeon R7 250XE

Graphics Card

Aug 2012

Release Date

Aug 2014

GeForce 600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

1125 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

72.00GB/s

Render Config

-

Compute Units

10

-

1344

Shading Units

640

112

TMUs

40

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

13.76 GPixel/s

109.8 GTexel/s

Texture Rate

34.40 GTexel/s

-

2.634 TFLOPS

FP32 (float)

1101 GFLOPS

109.8 GFLOPS

FP64 (double)

68.80 GFLOPS

Board Design

150W

TDP

80W

450 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Cape Verde

GK104-300-KD-A2

GPU Variant

Cape Verde XT

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.5 billion

294 mm²

Die Size

123 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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