NVIDIA GeForce GT 640 vs ATI Radeon X1650 GT

VS

NVIDIA GeForce GT 640

ATI Radeon X1650 GT

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 128MB VRAM Radeon X1650 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 640 's Advantages

Released 5 years and 1 months late

More VRAM (2GB vs 128GB)

Larger VRAM bandwidth (28.51GB/s vs 12.80GB/s)

384 additional rendering cores

Score

GeForce GT 640

VS

Radeon X1650 GT

Graphics Card

Jun 2012

Release Date

May 2007

GeForce 600

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

891 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

128MB

DDR3

Memory Type

GDDR3

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

12.80GB/s

Render Config

-

384

Shading Units

-

32

TMUs

8

16

ROPs

8

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

-

Theoretical Performance

7.216 GPixel/s

Pixel Rate

3.200 GPixel/s

28.86 GTexel/s

Texture Rate

3.200 GTexel/s

-

692.7 GFLOPS

FP32 (float)

-

28.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

Unknown

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

GK107

GPU Name

RV560

GK107-300-A2

GPU Variant

RV560 GT

Kepler

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

1.27 billion

Transistors

0.312 billion

118 mm²

Die Size

230 mm²

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

3.0

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