NVIDIA GeForce GTX 680 Mac Edition vs NVIDIA GeForce GTX 745 OEM

VS

NVIDIA GeForce GTX 680 Mac Edition

NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 680 Mac Edition and 4GB VRAM GeForce GTX 745 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680 Mac Edition 's Advantages

Boost Clock1058MHz

Larger VRAM bandwidth (192.3GB/s vs 28.80GB/s)

1152 additional rendering cores

NVIDIA GeForce GTX 745 OEM 's Advantages

Released 10 months late

More VRAM (4GB vs 2GB)

Lower TDP (55W vs 195W)

Score

Benchmark

FP32 (float)

GeForce GTX 680 Mac Edition +309%

3.25 TFLOPS

GeForce GTX 745 OEM

0.793 TFLOPS

GeForce GTX 680 Mac Edition

VS

GeForce GTX 745 OEM

Graphics Card

Apr 2013

Release Date

Feb 2014

GeForce 600

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1006 MHz

Base Clock

-

1058 MHz

Boost Clock

-

1502 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

192.3GB/s

Bandwidth

28.80GB/s

Render Config

-

1536

Shading Units

384

128

TMUs

24

32

ROPs

16

-

16 KB (per SMX)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

33.86 GPixel/s

Pixel Rate

16.53 GPixel/s

135.4 GTexel/s

Texture Rate

24.79 GTexel/s

-

3.250 TFLOPS

FP32 (float)

793.3 GFLOPS

135.4 GFLOPS

FP64 (double)

24.79 GFLOPS

Board Design

195W

TDP

55W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 2.0 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

GM107

GK104-400-A2

GPU Variant

GM107-220-A2

Kepler

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.87 billion

294 mm²

Die Size

148 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

5.0

5.1

Shader Model

5.1

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