NVIDIA GeForce 9400 GT Rev. 2 vs NVIDIA GeForce GTX 645 OEM

VS

NVIDIA GeForce 9400 GT Rev. 2 NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9400 GT Rev. 2 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 9400 GT Rev. 2 's Advantages

Lower TDP (50W vs 65W)

NVIDIA GeForce GTX 645 OEM 's Advantages

Released 4 years and 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 12.80GB/s)

560 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9400 GT Rev. 2

0.045 TFLOPS

GeForce GTX 645 OEM +2008%

0.949 TFLOPS

GeForce 9400 GT Rev. 2

VS

GeForce GTX 645 OEM

Graphics Card

Aug 2008

Release Date

Apr 2013

GeForce 9

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

400 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

128bit

12.80GB/s

Bandwidth

64.00GB/s

Render Config

2

SM Count

-

Compute Units

-

16

Shading Units

576

8

TMUs

48

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per SMX)

32 KB

L2 Cache

256 KB

Theoretical Performance

2.200 GPixel/s

Pixel Rate

9.888 GPixel/s

4.400 GTexel/s

Texture Rate

39.55 GTexel/s

-

FP16 (half)

-

44.80 GFLOPS

FP32 (float)

949.2 GFLOPS

-

FP64 (double)

39.55 GFLOPS

Graphics Processor

G96C

GPU Name

GK106

-

GPU Variant

GK106-200-A1

Tesla

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.314 billion

Transistors

2.54 billion

121 mm²

Die Size

221 mm²

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

None

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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