ATI Radeon X1550 vs NVIDIA GeForce GT 645 OEM

VS

ATI Radeon X1550 NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon X1550 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 X1550 's Advantages

Lower TDP (27W vs 102W)

NVIDIA GeForce GT 645 OEM 's Advantages

Released 5 years and 3 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (91.87GB/s vs 12.80GB/s)

288 additional rendering cores

Score

Radeon X1550

VS

GeForce GT 645 OEM

Graphics Card

Jan 2007

Release Date

Apr 2012

Radeon R500 PCIe

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

400 MHz

Memory Clock

957 MHz

Memory

256MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

192bit

12.80GB/s

Bandwidth

91.87GB/s

Render Config

-

SM Count

6

-

Compute Units

-

Shading Units

288

4

TMUs

48

4

ROPs

24

-

Tensor Cores

-

RT Cores

-

L1 Cache

64 KB (per SM)

-

L2 Cache

384 KB

Theoretical Performance

2.200 GPixel/s

Pixel Rate

9.312 GPixel/s

2.200 GTexel/s

Texture Rate

37.25 GTexel/s

-

FP16 (half)

-

FP32 (float)

894.0 GFLOPS

-

FP64 (double)

74.50 GFLOPS

Graphics Processor

RV516

GPU Name

GF114

-

GPU Variant

-

R500

Architecture

Fermi 2.0

UMC

Foundry

TSMC

80 nm

Process Size

40 nm

0.107 billion

Transistors

1.95 billion

100 mm²

Die Size

332 mm²

Board Design

27W

TDP

102W

200 W

Suggested PSU

300 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

None

Power Connectors

-

Graphics Features

9.0c (9_3)

DirectX

12 (11_0)

2.1

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

3.0

Shader Model

5.1

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