NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce GT 330 OEM

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce GT 330 OEM

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand 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 GT 640 OEM Rebrand 's Advantages

Released 2 years and 2 months late

More VRAM (1536GB vs 1024GB)

48 additional rendering cores

NVIDIA GeForce GT 330 OEM 's Advantages

Larger VRAM bandwidth (51.20GB/s vs 38.40GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand +72%

0.415 TFLOPS

GeForce GT 330 OEM

0.24 TFLOPS

GeForce GT 640 OEM Rebrand

VS

GeForce GT 330 OEM

Graphics Card

Apr 2012

Release Date

Feb 2010

GeForce 600

Generation

GeForce 300

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

800 MHz

Memory

1536MB

Memory Size

1024MB

DDR3

Memory Type

GDDR3

192bit

Memory Bus

256bit

38.40GB/s

Bandwidth

51.20GB/s

Render Config

-

3

SM Count

12

144

Shading Units

96

24

TMUs

48

24

ROPs

8

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

64 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

4.000 GPixel/s

17.28 GTexel/s

Texture Rate

24.00 GTexel/s

-

414.7 GFLOPS

FP32 (float)

240.0 GFLOPS

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

75W

250 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1x VGA

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

G92

GF116-150-A1

GPU Variant

-

Fermi 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.17 billion

Transistors

0.754 billion

238 mm²

Die Size

324 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

1.1

5.1

Shader Model

4.0

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