ATI Radeon X1550 vs NVIDIA GeForce GT 640

VS

ATI Radeon X1550

NVIDIA GeForce GT 640

We compared two Desktop platform GPUs: 256MB VRAM Radeon X1550 and 2GB VRAM GeForce GT 640 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 GT 640 's Advantages

Released 5 years and 5 months late

More VRAM (2GB vs 256GB)

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

384 additional rendering cores

Score

Radeon X1550

VS

GeForce GT 640

Graphics Card

Jan 2007

Release Date

Jun 2012

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

891 MHz

Memory

256MB

Memory Size

2GB

DDR2

Memory Type

DDR3

128bit

Memory Bus

128bit

12.80GB/s

Bandwidth

28.51GB/s

Render Config

-

Shading Units

384

4

TMUs

32

4

ROPs

16

-

L1 Cache

16 KB (per SMX)

-

L2 Cache

256 KB

-

Theoretical Performance

2.200 GPixel/s

Pixel Rate

7.216 GPixel/s

2.200 GTexel/s

Texture Rate

28.86 GTexel/s

-

FP32 (float)

692.7 GFLOPS

-

FP64 (double)

28.86 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

GK107

-

GPU Variant

GK107-300-A2

R500

Architecture

Kepler

UMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.107 billion

Transistors

1.27 billion

100 mm²

Die Size

118 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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