NVIDIA GeForce GTX 670 vs NVIDIA GeForce GT 640 OEM

VS

NVIDIA GeForce GTX 670 NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 670 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 670 's Advantages

Boost Clock980MHz

Larger VRAM bandwidth (192.3GB/s vs 28.51GB/s)

960 additional rendering cores

NVIDIA GeForce GT 640 OEM 's Advantages

Lower TDP (50W vs 170W)

Score

Benchmark

FP32 (float)

GeForce GTX 670 +330%

2.634 TFLOPS

GeForce GT 640 OEM

0.612 TFLOPS

GeForce GTX 670

VS

GeForce GT 640 OEM

Graphics Card

May 2012

Release Date

Apr 2012

GeForce 600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

891 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

192.3GB/s

Bandwidth

28.51GB/s

Render Config

-

SM Count

-

Compute Units

-

1344

Shading Units

384

112

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

256 KB

Theoretical Performance

27.44 GPixel/s

Pixel Rate

6.376 GPixel/s

109.8 GTexel/s

Texture Rate

25.50 GTexel/s

-

FP16 (half)

-

2.634 TFLOPS

FP32 (float)

612.1 GFLOPS

109.8 GFLOPS

FP64 (double)

25.50 GFLOPS

Graphics Processor

GK104

GPU Name

GK107

GK104-325-A2

GPU Variant

GK107-320-A2

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

3.54 billion

Transistors

1.27 billion

294 mm²

Die Size

118 mm²

Board Design

170W

TDP

50W

450 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.0

CUDA

3.0

5.1

Shader Model

5.1

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