NVIDIA GeForce GTX 660 OEM vs ATI Radeon X800 GT AGP

VS

NVIDIA GeForce GTX 660 OEM

ATI Radeon X800 GT AGP

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 660 OEM and 256MB VRAM Radeon X800 GT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 OEM 's Advantages

Released 4 years and 9 months late

Boost Clock888MHz

More VRAM (1536GB vs 256GB)

Larger VRAM bandwidth (134.4GB/s vs 31.55GB/s)

1152 additional rendering cores

ATI Radeon X800 GT AGP 's Advantages

Lower TDP (40W vs 130W)

Score

GeForce GTX 660 OEM

VS

Radeon X800 GT AGP

Graphics Card

Aug 2012

Release Date

Nov 2007

GeForce 600

Generation

Radeon R400 AGP

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

823 MHz

Base Clock

-

888 MHz

Boost Clock

-

1400 MHz

Memory Clock

493 MHz

Memory

1536MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

256bit

134.4GB/s

Bandwidth

31.55GB/s

Render Config

-

1152

Shading Units

-

96

TMUs

8

24

ROPs

8

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

-

Theoretical Performance

21.31 GPixel/s

Pixel Rate

3.784 GPixel/s

85.25 GTexel/s

Texture Rate

3.784 GTexel/s

-

2.046 TFLOPS

FP32 (float)

-

85.25 GFLOPS

FP64 (double)

-

Board Design

130W

TDP

40W

300 W

Suggested PSU

200 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

1x Molex

Graphics Processor

GK104

GPU Name

R420

GK104-200-KD-A2

GPU Variant

R420 GT (215RAACGA12F)

Kepler

Architecture

R400

TSMC

Foundry

TSMC

28 nm

Process Size

130 nm

3.54 billion

Transistors

0.16 billion

294 mm²

Die Size

281 mm²

Graphics Features

12 (11_0)

DirectX

9.0b (9_2)

4.6

OpenGL

2.1

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

-

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