NVIDIA GeForce GTX 660 OEM vs AMD Radeon R5 340X OEM

VS

NVIDIA GeForce GTX 660 OEM

AMD Radeon R5 340X OEM

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM 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 OEM 's Advantages

Boost Clock888MHz

Larger VRAM bandwidth (134.4GB/s vs 16.00GB/s)

768 additional rendering cores

AMD Radeon R5 340X OEM 's Advantages

Released 2 years and 9 months late

More VRAM (2GB vs 1536GB)

Lower TDP (65W vs 130W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM +196%

2.046 TFLOPS

Radeon R5 340X OEM

0.691 TFLOPS

GeForce GTX 660 OEM

VS

Radeon R5 340X OEM

Graphics Card

Aug 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

823 MHz

Base Clock

-

888 MHz

Boost Clock

-

1400 MHz

Memory Clock

1000 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

64bit

134.4GB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

6

-

1152

Shading Units

384

96

TMUs

24

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

128 KB

-

Theoretical Performance

21.31 GPixel/s

Pixel Rate

7.200 GPixel/s

85.25 GTexel/s

Texture Rate

21.60 GTexel/s

-

2.046 TFLOPS

FP32 (float)

691.2 GFLOPS

85.25 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

130W

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 Processor

GK104

GPU Name

Oland

GK104-200-KD-A2

GPU Variant

Oland XT (215-0837000)

Kepler

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

0.95 billion

294 mm²

Die Size

77 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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