NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce 505 OEM

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce 505 OEM

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 512MB VRAM GeForce 505 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

More VRAM (1536GB vs 512GB)

Larger VRAM bandwidth (38.40GB/s vs 9.600GB/s)

128 additional rendering cores

NVIDIA GeForce 505 OEM 's Advantages

Released 9 months late

Lower TDP (25W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand +822%

0.415 TFLOPS

GeForce 505 OEM

0.045 TFLOPS

GeForce GT 640 OEM Rebrand

VS

GeForce 505 OEM

Graphics Card

Apr 2012

Release Date

Jan 2013

GeForce 600

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

600 MHz

Memory

1536MB

Memory Size

512MB

DDR3

Memory Type

DDR3

192bit

Memory Bus

64bit

38.40GB/s

Bandwidth

9.600GB/s

Render Config

-

3

SM Count

2

144

Shading Units

16

24

TMUs

8

24

ROPs

4

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

32 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

2.356 GPixel/s

17.28 GTexel/s

Texture Rate

4.712 GTexel/s

-

414.7 GFLOPS

FP32 (float)

44.86 GFLOPS

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

25W

250 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1x VGA

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

GT218

GF116-150-A1

GPU Variant

GT218-300-B1

Fermi 2.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.17 billion

Transistors

0.26 billion

238 mm²

Die Size

57 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_1)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

1.2

5.1

Shader Model

4.1

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