NVIDIA GeForce GTX 460 v2 vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce GTX 460 v2

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 460 v2 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 460 v2 's Advantages

Larger VRAM bandwidth (96.19GB/s vs 28.51GB/s)

NVIDIA GeForce GT 640 OEM 's Advantages

Released 7 months late

More VRAM (2GB vs 1024GB)

48 additional rendering cores

Lower TDP (50W vs 160W)

Score

Benchmark

FP32 (float)

GeForce GTX 460 v2 +70%

1.046 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

GeForce GTX 460 v2

VS

GeForce GT 640 OEM

Graphics Card

Sep 2011

Release Date

Apr 2012

GeForce 400

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1002 MHz

Memory Clock

891 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

128bit

96.19GB/s

Bandwidth

28.51GB/s

Render Config

-

7

SM Count

-

336

Shading Units

384

56

TMUs

32

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

10.91 GPixel/s

Pixel Rate

6.376 GPixel/s

43.62 GTexel/s

Texture Rate

25.50 GTexel/s

-

1046 GFLOPS

FP32 (float)

612.1 GFLOPS

87.19 GFLOPS

FP64 (double)

25.50 GFLOPS

Board Design

160W

TDP

50W

450 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Processor

GF114

GPU Name

GK107

GF114-400-A1

GPU Variant

GK107-320-A2

Fermi 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

1.27 billion

332 mm²

Die Size

118 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.1

CUDA

3.0

5.1

Shader Model

5.1

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