NVIDIA GeForce GT 520 vs NVIDIA GeForce GT 640

VS

NVIDIA GeForce GT 520

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 520 and 2GB VRAM GeForce GT 640 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 520 's Advantages

Lower TDP (29W vs 65W)

NVIDIA GeForce GT 640 's Advantages

Released 1 years and 2 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (28.51GB/s vs 14.40GB/s)

336 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 520

0.156 TFLOPS

GeForce GT 640 +344%

0.693 TFLOPS

GeForce GT 520

VS

GeForce GT 640

Graphics Card

Apr 2011

Release Date

Jun 2012

GeForce 500

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

900 MHz

Memory Clock

891 MHz

Memory

1024MB

Memory Size

2GB

DDR3

Memory Type

DDR3

64bit

Memory Bus

128bit

14.40GB/s

Bandwidth

28.51GB/s

Render Config

-

1

SM Count

-

48

Shading Units

384

8

TMUs

32

4

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

1.620 GPixel/s

Pixel Rate

7.216 GPixel/s

6.480 GTexel/s

Texture Rate

28.86 GTexel/s

-

155.5 GFLOPS

FP32 (float)

692.7 GFLOPS

12.96 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

29W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

None

Graphics Processor

GF119

GPU Name

GK107

GF119-300-A1

GPU Variant

GK107-300-A2

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.292 billion

Transistors

1.27 billion

79 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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