AMD Radeon R5 340X OEM vs NVIDIA GeForce GTX 660 Rev. 2

VS

AMD Radeon R5 340X OEM NVIDIA GeForce GTX 660 Rev. 2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R5 340X OEM and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R5 340X OEM 's Advantages

Released 8 months late

Lower TDP (65W vs 140W)

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Boost Clock1032MHz

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

576 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R5 340X OEM

0.691 TFLOPS

GeForce GTX 660 Rev. 2 +186%

1.981 TFLOPS

Radeon R5 340X OEM

VS

GeForce GTX 660 Rev. 2

Graphics Card

May 2015

Release Date

Sep 2014

Pirate Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

1000 MHz

Memory Clock

1502 MHz

Memory

2GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

64bit

Memory Bus

192bit

16.00GB/s

Bandwidth

144.2GB/s

Render Config

-

SM Count

-

6

Compute Units

-

384

Shading Units

960

24

TMUs

80

8

ROPs

24

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

384 KB

Theoretical Performance

7.200 GPixel/s

Pixel Rate

20.64 GPixel/s

21.60 GTexel/s

Texture Rate

82.56 GTexel/s

-

FP16 (half)

-

691.2 GFLOPS

FP32 (float)

1.981 TFLOPS

43.20 GFLOPS

FP64 (double)

82.56 GFLOPS

Graphics Processor

Oland

GPU Name

GK104

Oland XT (215-0837000)

GPU Variant

-

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

0.95 billion

Transistors

3.54 billion

77 mm²

Die Size

294 mm²

Board Design

65W

TDP

140W

250 W

Suggested PSU

300 W

1x DVI 1x DisplayPort 1.2

Outputs

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

None

Power Connectors

1x 6-pin

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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