NVIDIA GeForce GTX 750 GM206 vs NVIDIA GeForce GT 640 Rev. 2

VS

NVIDIA GeForce GTX 750 GM206

NVIDIA GeForce GT 640 Rev. 2

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 750 GM206 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 750 GM206 's Advantages

Released 2 years and 6 months late

Boost Clock1239MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (80.19GB/s vs 40.06GB/s)

128 additional rendering cores

NVIDIA GeForce GT 640 Rev. 2 's Advantages

Lower TDP (49W vs 60W)

Score

Benchmark

FP32 (float)

GeForce GTX 750 GM206 +58%

1.269 TFLOPS

GeForce GT 640 Rev. 2

0.803 TFLOPS

GeForce GTX 750 GM206

VS

GeForce GT 640 Rev. 2

Graphics Card

Nov 2015

Release Date

May 2013

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

1087 MHz

Base Clock

-

1239 MHz

Boost Clock

-

1253 MHz

Memory Clock

1252 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

80.19GB/s

Bandwidth

40.06GB/s

Render Config

-

512

Shading Units

384

32

TMUs

32

ROPs

8

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

39.65 GPixel/s

Pixel Rate

8.368 GPixel/s

39.65 GTexel/s

Texture Rate

33.47 GTexel/s

-

1269 GFLOPS

FP32 (float)

803.3 GFLOPS

39.65 GFLOPS

FP64 (double)

33.47 GFLOPS

Board Design

60W

TDP

49W

250 W

Suggested PSU

200 W

2x DVI 1x HDMI 2.0

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

-

Power Connectors

None

Graphics Processor

GM206

GPU Name

GK208

-

GPU Variant

GK208-400-A1

Maxwell 2.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.94 billion

Transistors

1.02 billion

228 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

5.2

CUDA

3.5

6.4

Shader Model

5.1

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