ATI Radeon HD 5550 vs NVIDIA GeForce GT 645 OEM

VS

ATI Radeon HD 5550

NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 5550 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5550 's Advantages

32 additional rendering cores

Lower TDP (39W vs 102W)

NVIDIA GeForce GT 645 OEM 's Advantages

Released 2 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (91.87GB/s vs 51.20GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 5550

0.352 TFLOPS

GeForce GT 645 OEM +153%

0.894 TFLOPS

Radeon HD 5550

VS

GeForce GT 645 OEM

Graphics Card

Feb 2010

Release Date

Apr 2012

Evergreen

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

957 MHz

Memory

512MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

192bit

51.20GB/s

Bandwidth

91.87GB/s

Render Config

4

Compute Units

-

SM Count

6

320

Shading Units

288

16

TMUs

48

8

ROPs

24

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

9.312 GPixel/s

8.800 GTexel/s

Texture Rate

37.25 GTexel/s

-

352.0 GFLOPS

FP32 (float)

894.0 GFLOPS

-

FP64 (double)

74.50 GFLOPS

Board Design

39W

TDP

102W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

-

Graphics Processor

Redwood

GPU Name

GF114

Redwood PRO2

GPU Variant

-

TeraScale 2

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

1.95 billion

104 mm²

Die Size

332 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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