NVIDIA GeForce GTX 1070 GDDR5X vs NVIDIA GeForce GT 640 OEM Rebrand

VS

NVIDIA GeForce GTX 1070 GDDR5X

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1070 GDDR5X and 1536MB VRAM GeForce GT 640 OEM Rebrand to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1070 GDDR5X 's Advantages

Released 6 years and 8 months late

Boost Clock1683MHz

More VRAM (8GB vs 1536GB)

Larger VRAM bandwidth (256.3GB/s vs 38.40GB/s)

1776 additional rendering cores

NVIDIA GeForce GT 640 OEM Rebrand 's Advantages

Lower TDP (75W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 1070 GDDR5X +1457%

6.463 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce GTX 1070 GDDR5X

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Dec 2018

Release Date

Apr 2012

GeForce 10

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1506 MHz

Base Clock

-

1683 MHz

Boost Clock

-

1001 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

1536MB

GDDR5X

Memory Type

DDR3

256bit

Memory Bus

192bit

256.3GB/s

Bandwidth

38.40GB/s

Render Config

-

15

SM Count

3

1920

Shading Units

144

120

TMUs

24

64

ROPs

24

-

48 KB (per SM)

L1 Cache

64 KB (per SM)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

107.7 GPixel/s

Pixel Rate

4.320 GPixel/s

202.0 GTexel/s

Texture Rate

17.28 GTexel/s

101.0 GFLOPS

FP16 (half)

-

6.463 TFLOPS

FP32 (float)

414.7 GFLOPS

202.0 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

150W

TDP

75W

450 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 8-pin

Power Connectors

None

Graphics Processor

GP104

GPU Name

GF116

GP104-200-A1

GPU Variant

GF116-150-A1

Pascal

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

16 nm

Process Size

40 nm

7.2 billion

Transistors

1.17 billion

314 mm²

Die Size

238 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

1.3

Vulkan

N/A

6.1

CUDA

2.1

6.4

Shader Model

5.1

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