ATI Radeon X1650 GTO vs NVIDIA GeForce GT 640 OEM

VS

ATI Radeon X1650 GTO

NVIDIA GeForce GT 640 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon X1650 GTO 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 GT 640 OEM 's Advantages

Released 4 years and 4 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (28.51GB/s vs 12.54GB/s)

384 additional rendering cores

Score

Radeon X1650 GTO

VS

GeForce GT 640 OEM

Graphics Card

Dec 2007

Release Date

Apr 2012

Radeon R500 PCIe

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

392 MHz

Memory Clock

891 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

DDR3

128bit

Memory Bus

128bit

12.54GB/s

Bandwidth

28.51GB/s

Render Config

-

Shading Units

384

4

TMUs

32

4

ROPs

16

-

L1 Cache

16 KB (per SMX)

-

L2 Cache

256 KB

-

Theoretical Performance

2.348 GPixel/s

Pixel Rate

6.376 GPixel/s

2.348 GTexel/s

Texture Rate

25.50 GTexel/s

-

FP32 (float)

612.1 GFLOPS

-

FP64 (double)

25.50 GFLOPS

Board Design

Unknown

TDP

50W

200 W

Suggested PSU

250 W

1x HDMI 1x VGA

Outputs

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

None

Power Connectors

None

Graphics Processor

RV530

GPU Name

GK107

RV530 LE

GPU Variant

GK107-320-A2

Ultra-Threaded SE

Architecture

Kepler

TSMC

Foundry

TSMC

90 nm

Process Size

28 nm

0.157 billion

Transistors

1.27 billion

150 mm²

Die Size

118 mm²

Graphics Features

9.0c (9_3)

DirectX

12 (11_0)

2.1

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

Shader Model

5.1

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