NVIDIA GeForce 8400 vs NVIDIA GeForce GTX 680 Mac Edition

VS

NVIDIA GeForce 8400

NVIDIA GeForce GTX 680 Mac Edition

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8400 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 8400 's Advantages

Lower TDP (25W vs 195W)

NVIDIA GeForce GTX 680 Mac Edition 's Advantages

Released 5 years and 4 months late

Boost Clock1058MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (192.3GB/s vs 8.000GB/s)

1528 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400

0.021 TFLOPS

GeForce GTX 680 Mac Edition +15376%

3.25 TFLOPS

GeForce 8400

VS

GeForce GTX 680 Mac Edition

Graphics Card

Dec 2007

Release Date

Apr 2013

GeForce 8

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1058 MHz

500 MHz

Memory Clock

1502 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

192.3GB/s

Render Config

-

1

SM Count

-

8

Shading Units

1536

4

TMUs

128

4

ROPs

32

-

L1 Cache

16 KB (per SMX)

16 KB

L2 Cache

512 KB

-

Theoretical Performance

2.160 GPixel/s

Pixel Rate

33.86 GPixel/s

2.160 GTexel/s

Texture Rate

135.4 GTexel/s

-

20.80 GFLOPS

FP32 (float)

3.250 TFLOPS

-

FP64 (double)

135.4 GFLOPS

Board Design

25W

TDP

195W

200 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

G98

GPU Name

GK104

-

GPU Variant

GK104-400-A2

Tesla

Architecture

Kepler

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.21 billion

Transistors

3.54 billion

86 mm²

Die Size

294 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

CUDA

3.0

4.0

Shader Model

5.1

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