NVIDIA GeForce GT 640 OEM vs ATI Radeon HD 4650 AGP

VS

NVIDIA GeForce GT 640 OEM ATI Radeon HD 4650 AGP

We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 OEM and 512MB VRAM Radeon HD 4650 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 3 years and 7 months late

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

64 additional rendering cores

ATI Radeon HD 4650 AGP 's Advantages

Lower TDP (48W vs 50W)

Score

Benchmark

FP32 (float)

GeForce GT 640 OEM +59%

0.612 TFLOPS

Radeon HD 4650 AGP

0.384 TFLOPS

GeForce GT 640 OEM

VS

Radeon HD 4650 AGP

Graphics Card

Apr 2012

Release Date

Sep 2008

GeForce 600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

Base Clock

-

Boost Clock

-

891 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

DDR3

Memory Type

DDR2

128bit

Memory Bus

128bit

28.51GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

-

Compute Units

4

384

Shading Units

320

32

TMUs

32

16

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

128 KB

Theoretical Performance

6.376 GPixel/s

Pixel Rate

4.800 GPixel/s

25.50 GTexel/s

Texture Rate

19.20 GTexel/s

-

FP16 (half)

-

612.1 GFLOPS

FP32 (float)

384.0 GFLOPS

25.50 GFLOPS

FP64 (double)

-

Graphics Processor

GK107

GPU Name

RV730

GK107-320-A2

GPU Variant

RV730 PRO (215-0719056)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.27 billion

Transistors

0.514 billion

118 mm²

Die Size

146 mm²

Board Design

50W

TDP

48W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

-

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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