NVIDIA GeForce GT 640 OEM Rebrand vs NVIDIA GeForce GTX 260 Core 216 Rev. 2

VS

NVIDIA GeForce GT 640 OEM Rebrand

NVIDIA GeForce GTX 260 Core 216 Rev. 2

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand and 896MB VRAM GeForce GTX 260 Core 216 Rev. 2 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 3 years and 5 months late

More VRAM (1536GB vs 896GB)

Lower TDP (75W vs 171W)

NVIDIA GeForce GTX 260 Core 216 Rev. 2 's Advantages

Larger VRAM bandwidth (111.9GB/s vs 38.40GB/s)

72 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM Rebrand

0.415 TFLOPS

GeForce GTX 260 Core 216 Rev. 2 +29%

0.536 TFLOPS

GeForce GT 640 OEM Rebrand

VS

GeForce GTX 260 Core 216 Rev. 2

Graphics Card

Apr 2012

Release Date

Nov 2008

GeForce 600

Generation

GeForce 200

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

999 MHz

Memory

1536MB

Memory Size

896MB

DDR3

Memory Type

GDDR3

192bit

Memory Bus

448bit

38.40GB/s

Bandwidth

111.9GB/s

Render Config

-

3

SM Count

27

144

Shading Units

216

24

TMUs

72

24

ROPs

28

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

224 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

16.13 GPixel/s

17.28 GTexel/s

Texture Rate

41.47 GTexel/s

-

414.7 GFLOPS

FP32 (float)

536.5 GFLOPS

34.56 GFLOPS

FP64 (double)

67.07 GFLOPS

Board Design

75W

TDP

171W

250 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x S-Video

None

Power Connectors

2x 6-pin

Graphics Processor

GF116

GPU Name

GT200B

GF116-150-A1

GPU Variant

G200-103-B2

Fermi 2.0

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.17 billion

Transistors

1.4 billion

238 mm²

Die Size

470 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

1.3

5.1

Shader Model

4.0

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