NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce GT 520 PCI

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce GT 520 PCI

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 1024MB VRAM GeForce GT 520 PCI 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 1 years late

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (38.40GB/s vs 14.40GB/s)

96 additional rendering cores

NVIDIA GeForce GT 520 PCI 's Advantages

Lower TDP (29W vs 75W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand +166%

0.415 TFLOPS

GeForce GT 520 PCI

0.156 TFLOPS

GeForce GT 640 OEM Rebrand

VS

GeForce GT 520 PCI

Graphics Card

Apr 2012

Release Date

Apr 2011

GeForce 600

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCI

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

1536MB

Memory Size

1024MB

DDR3

Memory Type

DDR3

192bit

Memory Bus

64bit

38.40GB/s

Bandwidth

14.40GB/s

Render Config

-

3

SM Count

1

144

Shading Units

48

24

TMUs

8

24

ROPs

4

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

128 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

1.620 GPixel/s

17.28 GTexel/s

Texture Rate

6.480 GTexel/s

-

414.7 GFLOPS

FP32 (float)

155.5 GFLOPS

34.56 GFLOPS

FP64 (double)

12.96 GFLOPS

Board Design

75W

TDP

29W

250 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

GF119

GF116-150-A1

GPU Variant

GF119-300-A1

Fermi 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.17 billion

Transistors

0.292 billion

238 mm²

Die Size

79 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

2.1

5.1

Shader Model

5.1

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