NVIDIA GeForce GT 645 OEM vs ATI Radeon HD 4730 OEM

VS

NVIDIA GeForce GT 645 OEM

ATI Radeon HD 4730 OEM

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM Radeon HD 4730 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Released 3 years and 4 months late

Larger VRAM bandwidth (91.87GB/s vs 25.34GB/s)

Lower TDP (102W vs 110W)

ATI Radeon HD 4730 OEM 's Advantages

32 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +108%

0.894 TFLOPS

Radeon HD 4730 OEM

0.428 TFLOPS

GeForce GT 645 OEM

VS

Radeon HD 4730 OEM

Graphics Card

Apr 2012

Release Date

Dec 2008

GeForce 600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

396 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

192bit

Memory Bus

256bit

91.87GB/s

Bandwidth

25.34GB/s

Render Config

-

Compute Units

4

6

SM Count

-

288

Shading Units

320

48

TMUs

16

24

ROPs

16

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

10.70 GPixel/s

37.25 GTexel/s

Texture Rate

10.70 GTexel/s

-

894.0 GFLOPS

FP32 (float)

428.2 GFLOPS

74.50 GFLOPS

FP64 (double)

85.63 GFLOPS

Board Design

102W

TDP

110W

300 W

Suggested PSU

300 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI 1x S-Video

-

Graphics Processor

GF114

GPU Name

RV670

-

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.95 billion

Transistors

0.666 billion

332 mm²

Die Size

192 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.1

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