AMD Radeon R7 250E vs NVIDIA GeForce GTX 660

VS

AMD Radeon R7 250E

NVIDIA GeForce GTX 660

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

Main Differences

AMD Radeon R7 250E 's Advantages

Released 1 years and 3 months late

Lower TDP (55W vs 140W)

NVIDIA GeForce GTX 660 's Advantages

Boost Clock1032MHz

More VRAM (2GB vs 1024GB)

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

448 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 250E

0.819 TFLOPS

GeForce GTX 660 +141%

1.981 TFLOPS

Radeon R7 250E

VS

GeForce GTX 660

Graphics Card

Dec 2013

Release Date

Sep 2012

Volcanic Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

1125 MHz

Memory Clock

1502 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

72.00GB/s

Bandwidth

144.2GB/s

Render Config

8

Compute Units

-

512

Shading Units

960

32

TMUs

80

16

ROPs

24

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

12.80 GPixel/s

Pixel Rate

20.64 GPixel/s

25.60 GTexel/s

Texture Rate

82.56 GTexel/s

-

819.2 GFLOPS

FP32 (float)

1.981 TFLOPS

51.20 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

55W

TDP

140W

250 W

Suggested PSU

300 W

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

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

Cape Verde

GPU Name

GK106

Cape Verde PRO

GPU Variant

GK106-400-A1

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.5 billion

Transistors

2.54 billion

123 mm²

Die Size

221 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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