NVIDIA GeForce GT 640 OEM vs ATI Radeon HD 3650 AGP

VS

NVIDIA GeForce GT 640 OEM ATI Radeon HD 3650 AGP

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 OEM and 512MB VRAM Radeon HD 3650 AGP 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 3 months late

Larger VRAM bandwidth (28.51GB/s vs 16.00GB/s)

264 additional rendering cores

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM +251%

0.612 TFLOPS

Radeon HD 3650 AGP

0.174 TFLOPS

GeForce GT 640 OEM

VS

Radeon HD 3650 AGP

Graphics Card

Apr 2012

Release Date

Jan 2008

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

Base Clock

-

Boost Clock

-

891 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

DDR2

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

16.00GB/s

Render Config

-

SM Count

-

Compute Units

3

384

Shading Units

120

32

TMUs

8

16

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

128 KB

Theoretical Performance

6.376 GPixel/s

Pixel Rate

2.900 GPixel/s

25.50 GTexel/s

Texture Rate

5.800 GTexel/s

-

FP16 (half)

-

612.1 GFLOPS

FP32 (float)

174.0 GFLOPS

25.50 GFLOPS

FP64 (double)

-

Graphics Processor

GK107

GPU Name

RV635

GK107-320-A2

GPU Variant

RV635 PRO (215-0682008)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.378 billion

118 mm²

Die Size

135 mm²

Board Design

50W

TDP

65W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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