NVIDIA GeForce GTX 750 Ti OEM vs NVIDIA GeForce GTX 645 OEM

VS

NVIDIA GeForce GTX 750 Ti OEM

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 750 Ti OEM and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 750 Ti OEM 's Advantages

Boost Clock1098MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (192.3GB/s vs 64.00GB/s)

384 additional rendering cores

NVIDIA GeForce GTX 645 OEM 's Advantages

Lower TDP (65W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 750 Ti OEM +122%

2.108 TFLOPS

GeForce GTX 645 OEM

0.949 TFLOPS

GeForce GTX 750 Ti OEM

VS

GeForce GTX 645 OEM

Graphics Card

Unknown

Release Date

Apr 2013

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1033 MHz

Base Clock

-

1098 MHz

Boost Clock

-

1502 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

192.3GB/s

Bandwidth

64.00GB/s

Render Config

-

960

Shading Units

576

80

TMUs

48

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

21.96 GPixel/s

Pixel Rate

9.888 GPixel/s

87.84 GTexel/s

Texture Rate

39.55 GTexel/s

-

2.108 TFLOPS

FP32 (float)

949.2 GFLOPS

87.84 GFLOPS

FP64 (double)

39.55 GFLOPS

Board Design

150W

TDP

65W

450 W

Suggested PSU

250 W

No outputs

Outputs

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

-

Power Connectors

None

Graphics Processor

GK106

GPU Name

GK106

-

GPU Variant

GK106-200-A1

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.54 billion

Transistors

2.54 billion

221 mm²

Die Size

221 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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