NVIDIA GeForce GTX 660 OEM vs AMD Radeon R5 340 OEM

VS

NVIDIA GeForce GTX 660 OEM

AMD Radeon R5 340 OEM

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 1024MB VRAM Radeon R5 340 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 Clock has increased by 14% (888MHz vs 780MHz)

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (134.4GB/s vs 36.80GB/s)

768 additional rendering cores

AMD Radeon R5 340 OEM 's Advantages

Released 2 years and 9 months late

Lower TDP (65W vs 130W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM +241%

2.046 TFLOPS

Radeon R5 340 OEM

0.599 TFLOPS

GeForce GTX 660 OEM

VS

Radeon R5 340 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

730 MHz

888 MHz

Boost Clock

780 MHz

1400 MHz

Memory Clock

1150 MHz

Memory

1536MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

64bit

134.4GB/s

Bandwidth

36.80GB/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

6.240 GPixel/s

85.25 GTexel/s

Texture Rate

18.72 GTexel/s

-

2.046 TFLOPS

FP32 (float)

599.0 GFLOPS

85.25 GFLOPS

FP64 (double)

37.44 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 PRO (215-0837015)

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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