NVIDIA GeForce GTX 260 Rev. 2 vs NVIDIA GeForce GT 645 OEM

VS

NVIDIA GeForce GTX 260 Rev. 2

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 260 Rev. 2 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 260 Rev. 2 's Advantages

Larger VRAM bandwidth (111.9GB/s vs 91.87GB/s)

NVIDIA GeForce GT 645 OEM 's Advantages

Released 3 years and 9 months late

More VRAM (1024GB vs 896GB)

96 additional rendering cores

Lower TDP (102W vs 182W)

Score

Benchmark

FP32 (float)

GeForce GTX 260 Rev. 2

0.477 TFLOPS

GeForce GT 645 OEM +87%

0.894 TFLOPS

GeForce GTX 260 Rev. 2

VS

GeForce GT 645 OEM

Graphics Card

Jul 2008

Release Date

Apr 2012

GeForce 200

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

999 MHz

Memory Clock

957 MHz

Memory

896MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

192bit

111.9GB/s

Bandwidth

91.87GB/s

Render Config

-

24

SM Count

6

192

Shading Units

288

64

TMUs

48

28

ROPs

24

-

L1 Cache

64 KB (per SM)

224 KB

L2 Cache

384 KB

-

Theoretical Performance

16.13 GPixel/s

Pixel Rate

9.312 GPixel/s

36.86 GTexel/s

Texture Rate

37.25 GTexel/s

-

476.9 GFLOPS

FP32 (float)

894.0 GFLOPS

59.62 GFLOPS

FP64 (double)

74.50 GFLOPS

Board Design

182W

TDP

102W

450 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 6-pin

Power Connectors

-

Graphics Processor

GT200B

GPU Name

GF114

G200-103-B3

GPU Variant

-

Tesla 2.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

1.4 billion

Transistors

1.95 billion

470 mm²

Die Size

332 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.3

CUDA

2.1

4.0

Shader Model

5.1

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