NVIDIA GeForce 8400 GS Rev. 3 vs NVIDIA GeForce GTX 660 Rev. 2

VS

NVIDIA GeForce 8400 GS Rev. 3 NVIDIA GeForce GTX 660 Rev. 2

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 2GB VRAM GeForce GTX 660 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 GS Rev. 3 's Advantages

Lower TDP (25W vs 140W)

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Released 4 years and 2 months late

Boost Clock1032MHz

Larger VRAM bandwidth (144.2GB/s vs 6.400GB/s)

952 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS Rev. 3

0.02 TFLOPS

GeForce GTX 660 Rev. 2 +9805%

1.981 TFLOPS

GeForce 8400 GS Rev. 3

VS

GeForce GTX 660 Rev. 2

Graphics Card

Jul 2010

Release Date

Sep 2014

GeForce 8

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

400 MHz

Memory Clock

1502 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

192bit

6.400GB/s

Bandwidth

144.2GB/s

Render Config

1

SM Count

-

Compute Units

-

8

Shading Units

960

4

TMUs

80

4

ROPs

24

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per SMX)

32 KB

L2 Cache

384 KB

Theoretical Performance

2.080 GPixel/s

Pixel Rate

20.64 GPixel/s

2.080 GTexel/s

Texture Rate

82.56 GTexel/s

-

FP16 (half)

-

19.68 GFLOPS

FP32 (float)

1.981 TFLOPS

-

FP64 (double)

82.56 GFLOPS

Graphics Processor

GT218

GPU Name

GK104

8400GS-225-B1

GPU Variant

-

Tesla 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.26 billion

Transistors

3.54 billion

57 mm²

Die Size

294 mm²

Board Design

25W

TDP

140W

200 W

Suggested PSU

300 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Features

11.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

1.2

CUDA

3.0

4.1

Shader Model

5.1

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