NVIDIA GeForce GTX 660 OEM vs NVIDIA GeForce GTX 680 Mac Edition

VS

NVIDIA GeForce GTX 660 OEM NVIDIA GeForce GTX 680 Mac Edition

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 2GB VRAM GeForce GTX 680 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 OEM 's Advantages

Lower TDP (130W vs 195W)

NVIDIA GeForce GTX 680 Mac Edition 's Advantages

Released 8 months late

Boost Clock has increased by 19% (1058MHz vs 888MHz)

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (192.3GB/s vs 134.4GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 OEM

2.046 TFLOPS

GeForce GTX 680 Mac Edition +58%

3.25 TFLOPS

GeForce GTX 660 OEM

VS

GeForce GTX 680 Mac Edition

Graphics Card

Aug 2012

Release Date

Apr 2013

GeForce 600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

823 MHz

Base Clock

1006 MHz

888 MHz

Boost Clock

1058 MHz

1400 MHz

Memory Clock

1502 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

134.4GB/s

Bandwidth

192.3GB/s

Render Config

-

SM Count

-

Compute Units

-

1152

Shading Units

1536

96

TMUs

128

24

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

512 KB

Theoretical Performance

21.31 GPixel/s

Pixel Rate

33.86 GPixel/s

85.25 GTexel/s

Texture Rate

135.4 GTexel/s

-

FP16 (half)

-

2.046 TFLOPS

FP32 (float)

3.250 TFLOPS

85.25 GFLOPS

FP64 (double)

135.4 GFLOPS

Graphics Processor

GK104

GPU Name

GK104

GK104-200-KD-A2

GPU Variant

GK104-400-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

3.54 billion

294 mm²

Die Size

294 mm²

Board Design

130W

TDP

195W

300 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin

Power Connectors

2x 6-pin

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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