NVIDIA GeForce GTX 260 OEM vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce GTX 260 OEM

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 1792MB VRAM GeForce GTX 260 OEM and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 260 OEM 's Advantages

Larger VRAM bandwidth (112.9GB/s vs 28.51GB/s)

NVIDIA GeForce GT 640 OEM 's Advantages

Released 2 years and 4 months late

More VRAM (2GB vs 1792GB)

192 additional rendering cores

Lower TDP (50W vs 182W)

Score

Benchmark

FP32 (float)

GeForce GTX 260 OEM

0.415 TFLOPS

GeForce GT 640 OEM +47%

0.612 TFLOPS

GeForce GTX 260 OEM

VS

GeForce GT 640 OEM

Graphics Card

Dec 2009

Release Date

Apr 2012

GeForce 200

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1008 MHz

Memory Clock

891 MHz

Memory

1792MB

Memory Size

2GB

GDDR3

Memory Type

DDR3

448bit

Memory Bus

128bit

112.9GB/s

Bandwidth

28.51GB/s

Render Config

-

24

SM Count

-

192

Shading Units

384

64

TMUs

32

28

ROPs

16

-

L1 Cache

16 KB (per SMX)

224 KB

L2 Cache

256 KB

-

Theoretical Performance

14.50 GPixel/s

Pixel Rate

6.376 GPixel/s

33.15 GTexel/s

Texture Rate

25.50 GTexel/s

-

414.7 GFLOPS

FP32 (float)

612.1 GFLOPS

51.84 GFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

182W

TDP

50W

450 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

GT200B

GPU Name

GK107

G200-103-B2

GPU Variant

GK107-320-A2

Tesla 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

1.4 billion

Transistors

1.27 billion

470 mm²

Die Size

118 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

1.3

CUDA

3.0

4.0

Shader Model

5.1

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