NVIDIA GeForce GT 645 OEM vs NVIDIA GeForce GTX 460 X2

VS

NVIDIA GeForce GT 645 OEM

NVIDIA GeForce GTX 460 X2

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM GeForce GTX 460 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Released 1 years and 1 months late

Lower TDP (102W vs 160W)

NVIDIA GeForce GTX 460 X2 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 91.87GB/s)

48 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM

0.894 TFLOPS

GeForce GTX 460 X2 +5%

0.942 TFLOPS

GeForce GT 645 OEM

VS

GeForce GTX 460 X2

Graphics Card

Apr 2012

Release Date

Mar 2011

GeForce 600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

256bit

91.87GB/s

Bandwidth

115.2GB/s

Render Config

-

6

SM Count

7

288

Shading Units

336

48

TMUs

56

24

ROPs

32

-

64 KB (per SM)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

512 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

9.814 GPixel/s

37.25 GTexel/s

Texture Rate

39.26 GTexel/s

-

894.0 GFLOPS

FP32 (float)

941.5 GFLOPS

74.50 GFLOPS

FP64 (double)

78.46 GFLOPS

Board Design

102W

TDP

160W

300 W

Suggested PSU

450 W

2x DVI 1x mini-HDMI 1.3a

Outputs

3x DVI 1x mini-HDMI 1.3a

-

Power Connectors

2x 8-pin

Graphics Processor

GF114

GPU Name

GF104

-

GPU Variant

GF104-300-KB-A1

Fermi 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

1.95 billion

332 mm²

Die Size

332 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

2.1

CUDA

2.1

5.1

Shader Model

5.1

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