NVIDIA GeForce GTX 750 vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce GTX 750

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 750 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 750 's Advantages

Released 1 years and 8 months late

Boost Clock1085MHz

Larger VRAM bandwidth (80.19GB/s vs 28.51GB/s)

128 additional rendering cores

Lower TDP (55W vs 65W)

NVIDIA GeForce GT 640 's Advantages

More VRAM (2GB vs 1024GB)

Score

Benchmark

FP32 (float)

GeForce GTX 750 +60%

1.111 TFLOPS

GeForce GT 640

0.693 TFLOPS

GeForce GTX 750

VS

GeForce GT 640

Graphics Card

Feb 2014

Release Date

Jun 2012

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1020 MHz

Base Clock

-

1085 MHz

Boost Clock

-

1253 MHz

Memory Clock

891 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

128bit

80.19GB/s

Bandwidth

28.51GB/s

Render Config

-

512

Shading Units

384

32

TMUs

32

16

ROPs

16

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

17.36 GPixel/s

Pixel Rate

7.216 GPixel/s

34.72 GTexel/s

Texture Rate

28.86 GTexel/s

-

1111 GFLOPS

FP32 (float)

692.7 GFLOPS

34.72 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

55W

TDP

65W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 2.0

Outputs

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

None

Power Connectors

None

Graphics Processor

GM107

GPU Name

GK107

GM107-300-A2

GPU Variant

GK107-300-A2

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

1.27 billion

148 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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