NVIDIA GeForce GTX 950 Low Power vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce GTX 950 Low Power NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 950 Low Power and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 950 Low Power 's Advantages

Released 3 years and 11 months late

Boost Clock1190MHz

Larger VRAM bandwidth (105.8GB/s vs 28.51GB/s)

384 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 950 Low Power +198%

1.828 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

GeForce GTX 950 Low Power

VS

GeForce GT 640 OEM

Graphics Card

Mar 2016

Release Date

Apr 2012

GeForce 900

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1026 MHz

Base Clock

-

1190 MHz

Boost Clock

-

1653 MHz

Memory Clock

891 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

105.8GB/s

Bandwidth

28.51GB/s

Render Config

-

SM Count

-

Compute Units

-

768

Shading Units

384

48

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

Theoretical Performance

38.08 GPixel/s

Pixel Rate

6.376 GPixel/s

57.12 GTexel/s

Texture Rate

25.50 GTexel/s

-

FP16 (half)

-

1.828 TFLOPS

FP32 (float)

612.1 GFLOPS

57.12 GFLOPS

FP64 (double)

25.50 GFLOPS

Graphics Processor

GM206

GPU Name

GK107

GM206-251-A1

GPU Variant

GK107-320-A2

Maxwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.94 billion

Transistors

1.27 billion

228 mm²

Die Size

118 mm²

Board Design

75W

TDP

50W

250 W

Suggested PSU

250 W

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

Outputs

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

None

Power Connectors

None

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.2

CUDA

3.0

6.4

Shader Model

5.1

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