NVIDIA GeForce GT 640 OEM Rebrand vs ATI Radeon X1650 GT

VS

NVIDIA GeForce GT 640 OEM Rebrand

ATI Radeon X1650 GT

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GT 640 OEM Rebrand 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 OEM Rebrand 's Advantages

Released 4 years and 11 months late

More VRAM (1536GB vs 128GB)

Larger VRAM bandwidth (38.40GB/s vs 12.80GB/s)

144 additional rendering cores

Score

GeForce GT 640 OEM Rebrand

VS

Radeon X1650 GT

Graphics Card

Apr 2012

Release Date

May 2007

GeForce 600

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

800 MHz

Memory Clock

400 MHz

Memory

1536MB

Memory Size

128MB

DDR3

Memory Type

GDDR3

192bit

Memory Bus

128bit

38.40GB/s

Bandwidth

12.80GB/s

Render Config

-

3

SM Count

-

144

Shading Units

-

24

TMUs

8

24

ROPs

8

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

3.200 GPixel/s

17.28 GTexel/s

Texture Rate

3.200 GTexel/s

-

414.7 GFLOPS

FP32 (float)

-

34.56 GFLOPS

FP64 (double)

-

Board Design

75W

TDP

Unknown

250 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

GF116

GPU Name

RV560

GF116-150-A1

GPU Variant

RV560 GT

Fermi 2.0

Architecture

Ultra-Threaded SE

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.17 billion

Transistors

0.312 billion

238 mm²

Die Size

230 mm²

Graphics Features

12 (11_0)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

3.0

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