NVIDIA GeForce GTX 660 vs AMD Radeon HD 8740 OEM

VS

NVIDIA GeForce GTX 660 AMD Radeon HD 8740 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 1024MB VRAM Radeon HD 8740 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Boost Clock1032MHz

More VRAM (2GB vs 1GB)

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

448 additional rendering cores

AMD Radeon HD 8740 OEM 's Advantages

Released 1 years late

Lower TDP (55W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +141%

1.981 TFLOPS

Radeon HD 8740 OEM

0.819 TFLOPS

GeForce GTX 660

VS

Radeon HD 8740 OEM

Graphics Card

Sep 2012

Release Date

Sep 2013

GeForce 600

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 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

-

SM Count

-

Compute Units

8

960

Shading Units

512

80

TMUs

32

24

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

12.80 GPixel/s

82.56 GTexel/s

Texture Rate

25.60 GTexel/s

-

FP16 (half)

-

1.981 TFLOPS

FP32 (float)

819.2 GFLOPS

82.56 GFLOPS

FP64 (double)

51.20 GFLOPS

Graphics Processor

GK106

GPU Name

Cape Verde

GK106-400-A1

GPU Variant

Cape Verde PRO

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

1.5 billion

221 mm²

Die Size

123 mm²

Board Design

140W

TDP

55W

300 W

Suggested PSU

250 W

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

Outputs

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

1x 6-pin

Power Connectors

None

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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