NVIDIA GeForce GTX 950 OEM vs NVIDIA GeForce GT 640 OEM Rebrand

VS

NVIDIA GeForce GTX 950 OEM

NVIDIA GeForce GT 640 OEM Rebrand

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 950 OEM 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 950 OEM 's Advantages

Released 3 years and 9 months late

Boost Clock1203MHz

More VRAM (4GB vs 1536GB)

Larger VRAM bandwidth (80.19GB/s vs 38.40GB/s)

880 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 950 OEM +493%

2.464 TFLOPS

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce GTX 950 OEM

VS

GeForce GT 640 OEM Rebrand

Graphics Card

Jan 2016

Release Date

Apr 2012

GeForce 900

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

937 MHz

Base Clock

-

1203 MHz

Boost Clock

-

1253 MHz

Memory Clock

800 MHz

Memory

4GB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

192bit

80.19GB/s

Bandwidth

38.40GB/s

Render Config

-

SM Count

3

1024

Shading Units

144

64

TMUs

24

32

ROPs

24

-

48 KB (per SMM)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

384 KB

-

Theoretical Performance

38.50 GPixel/s

Pixel Rate

4.320 GPixel/s

76.99 GTexel/s

Texture Rate

17.28 GTexel/s

-

2.464 TFLOPS

FP32 (float)

414.7 GFLOPS

76.99 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

Unknown

TDP

75W

200 W

Suggested PSU

250 W

No outputs

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

None

Graphics Processor

GM206S

GPU Name

GF116

950 OEM

GPU Variant

GF116-150-A1

Maxwell 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.94 billion

Transistors

1.17 billion

228 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

5.2

CUDA

2.1

6.7

Shader Model

5.1

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