ATI Radeon X1550 vs NVIDIA GeForce GTX 645 OEM

VS

ATI Radeon X1550

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon X1550 and 1024MB VRAM GeForce GTX 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 65W)

NVIDIA GeForce GTX 645 OEM 's Advantages

Released 6 years and 3 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 12.80GB/s)

576 additional rendering cores

Score

Radeon X1550

VS

GeForce GTX 645 OEM

Graphics Card

Jan 2007

Release Date

Apr 2013

Radeon R500 PCIe

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1000 MHz

Memory

256MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

128bit

12.80GB/s

Bandwidth

64.00GB/s

Render Config

-

Shading Units

576

4

TMUs

48

4

ROPs

16

-

L1 Cache

16 KB (per SMX)

-

L2 Cache

256 KB

-

Theoretical Performance

2.200 GPixel/s

Pixel Rate

9.888 GPixel/s

2.200 GTexel/s

Texture Rate

39.55 GTexel/s

-

FP32 (float)

949.2 GFLOPS

-

FP64 (double)

39.55 GFLOPS

Board Design

27W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

None

Graphics Processor

RV516

GPU Name

GK106

-

GPU Variant

GK106-200-A1

R500

Architecture

Kepler

UMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.107 billion

Transistors

2.54 billion

100 mm²

Die Size

221 mm²

Graphics Features

9.0c (9_3)

DirectX

12 (11_0)

2.1

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

Shader Model

5.1

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