NVIDIA GeForce GTX 660 vs AMD Radeon R5 340X OEM

VS

NVIDIA GeForce GTX 660 AMD Radeon R5 340X OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 2GB VRAM Radeon R5 340X 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

Larger VRAM bandwidth (144.2GB/s vs 16.00GB/s)

576 additional rendering cores

AMD Radeon R5 340X OEM 's Advantages

Released 2 years and 8 months late

Lower TDP (65W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +186%

1.981 TFLOPS

Radeon R5 340X OEM

0.691 TFLOPS

GeForce GTX 660

VS

Radeon R5 340X OEM

Graphics Card

Sep 2012

Release Date

May 2015

GeForce 600

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

64bit

144.2GB/s

Bandwidth

16.00GB/s

Render Config

-

SM Count

-

Compute Units

6

960

Shading Units

384

80

TMUs

24

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

128 KB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

7.200 GPixel/s

82.56 GTexel/s

Texture Rate

21.60 GTexel/s

-

FP16 (half)

-

1.981 TFLOPS

FP32 (float)

691.2 GFLOPS

82.56 GFLOPS

FP64 (double)

43.20 GFLOPS

Graphics Processor

GK106

GPU Name

Oland

GK106-400-A1

GPU Variant

Oland XT (215-0837000)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

0.95 billion

221 mm²

Die Size

77 mm²

Board Design

140W

TDP

65W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 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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