NVIDIA GeForce GTX 645 OEM vs NVIDIA GeForce GT 330 OEM

VS

NVIDIA GeForce GTX 645 OEM

NVIDIA GeForce GT 330 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 645 OEM and 1024MB VRAM GeForce GT 330 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 645 OEM 's Advantages

Released 3 years and 2 months late

Larger VRAM bandwidth (64.00GB/s vs 51.20GB/s)

480 additional rendering cores

Lower TDP (65W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GTX 645 OEM +295%

0.949 TFLOPS

GeForce GT 330 OEM

0.24 TFLOPS

GeForce GTX 645 OEM

VS

GeForce GT 330 OEM

Graphics Card

Apr 2013

Release Date

Feb 2010

GeForce 600

Generation

GeForce 300

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

256bit

64.00GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

12

576

Shading Units

96

48

TMUs

48

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

9.888 GPixel/s

Pixel Rate

4.000 GPixel/s

39.55 GTexel/s

Texture Rate

24.00 GTexel/s

-

949.2 GFLOPS

FP32 (float)

240.0 GFLOPS

39.55 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

75W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1x VGA

None

Power Connectors

None

Graphics Processor

GK106

GPU Name

G92

GK106-200-A1

GPU Variant

-

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

2.54 billion

Transistors

0.754 billion

221 mm²

Die Size

324 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

1.1

5.1

Shader Model

4.0

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