NVIDIA GeForce GTX 750 GM206 vs NVIDIA GeForce GTX 645 OEM

VS

NVIDIA GeForce GTX 750 GM206

NVIDIA GeForce GTX 645 OEM

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

Released 2 years and 7 months late

Boost Clock1239MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (80.19GB/s vs 64.00GB/s)

Lower TDP (60W vs 65W)

NVIDIA GeForce GTX 645 OEM 's Advantages

64 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 750 GM206 +33%

1.269 TFLOPS

GeForce GTX 645 OEM

0.949 TFLOPS

GeForce GTX 750 GM206

VS

GeForce GTX 645 OEM

Graphics Card

Nov 2015

Release Date

Apr 2013

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1087 MHz

Base Clock

-

1239 MHz

Boost Clock

-

1253 MHz

Memory Clock

1000 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

80.19GB/s

Bandwidth

64.00GB/s

Render Config

-

512

Shading Units

576

32

TMUs

48

32

ROPs

16

-

48 KB (per SMM)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

39.65 GPixel/s

Pixel Rate

9.888 GPixel/s

39.65 GTexel/s

Texture Rate

39.55 GTexel/s

-

1269 GFLOPS

FP32 (float)

949.2 GFLOPS

39.65 GFLOPS

FP64 (double)

39.55 GFLOPS

Board Design

60W

TDP

65W

250 W

Suggested PSU

250 W

2x DVI 1x HDMI 2.0

Outputs

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

-

Power Connectors

None

Graphics Processor

GM206

GPU Name

GK106

-

GPU Variant

GK106-200-A1

Maxwell 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.94 billion

Transistors

2.54 billion

228 mm²

Die Size

221 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

3.0

6.4

Shader Model

5.1

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