NVIDIA GeForce GTX 1060 8 GB GDDR5X vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce GTX 1060 8 GB GDDR5X

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1060 8 GB GDDR5X and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1060 8 GB GDDR5X 's Advantages

Boost Clock1709MHz

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (256.3GB/s vs 40.06GB/s)

896 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 120W)

Score

Benchmark

FP32 (float)

GeForce GTX 1060 8 GB GDDR5X +444%

4.375 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce GTX 1060 8 GB GDDR5X

VS

GeForce GT 640 Rev. 2

Graphics Card

Unknown

Release Date

May 2013

GeForce 10

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

1506 MHz

Base Clock

-

1709 MHz

Boost Clock

-

1001 MHz

Memory Clock

1252 MHz

Memory

8GB

Memory Size

1024MB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

64bit

256.3GB/s

Bandwidth

40.06GB/s

Render Config

-

10

SM Count

-

1280

Shading Units

384

80

TMUs

32

64

ROPs

8

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

512 KB

-

Theoretical Performance

109.4 GPixel/s

Pixel Rate

8.368 GPixel/s

136.7 GTexel/s

Texture Rate

33.47 GTexel/s

68.36 GFLOPS

FP16 (half)

-

4.375 TFLOPS

FP32 (float)

803.3 GFLOPS

136.7 GFLOPS

FP64 (double)

33.47 GFLOPS

Board Design

120W

TDP

49W

300 W

Suggested PSU

200 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

GP104

GPU Name

GK208

GP104-150-KA-A1

GPU Variant

GK208-400-A1

Pascal

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

1.02 billion

314 mm²

Die Size

87 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

6.1

CUDA

3.5

6.4

Shader Model

5.1

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