NVIDIA GeForce GT 640 vs NVIDIA GeForce GTX 560 OEM

VS

NVIDIA GeForce GT 640

NVIDIA GeForce GTX 560 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 1280MB VRAM GeForce GTX 560 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 7 months late

More VRAM (2GB vs 1280GB)

Lower TDP (65W vs 150W)

NVIDIA GeForce GTX 560 OEM 's Advantages

Larger VRAM bandwidth (128.3GB/s vs 28.51GB/s)

Score

Benchmark

FP32 (float)

GeForce GT 640

0.693 TFLOPS

GeForce GTX 560 OEM +22%

0.848 TFLOPS

GeForce GT 640

VS

GeForce GTX 560 OEM

Graphics Card

Jun 2012

Release Date

Nov 2011

GeForce 600

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

891 MHz

Memory Clock

802 MHz

Memory

2GB

Memory Size

1280MB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

320bit

28.51GB/s

Bandwidth

128.3GB/s

Render Config

-

SM Count

12

384

Shading Units

384

32

TMUs

48

16

ROPs

40

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

640 KB

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

13.25 GPixel/s

28.86 GTexel/s

Texture Rate

26.50 GTexel/s

-

692.7 GFLOPS

FP32 (float)

847.9 GFLOPS

28.86 GFLOPS

FP64 (double)

106.0 GFLOPS

Board Design

65W

TDP

150W

250 W

Suggested PSU

450 W

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

Outputs

1x DVI 1x HDMI 1.3a

None

Power Connectors

1x 6-pin

Graphics Processor

GK107

GPU Name

GF110

GK107-300-A2

GPU Variant

GF110-040-A1

Kepler

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.27 billion

Transistors

3 billion

118 mm²

Die Size

520 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.0

5.1

Shader Model

5.1

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