NVIDIA GeForce GTX 490 vs ATI Radeon X800 GTO

VS

NVIDIA GeForce GTX 490

ATI Radeon X800 GTO

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 128MB VRAM Radeon X800 GTO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 490 's Advantages

More VRAM (1536GB vs 128GB)

Larger VRAM bandwidth (164.0GB/s vs 22.40GB/s)

480 additional rendering cores

ATI Radeon X800 GTO 's Advantages

Lower TDP (49W vs 365W)

Score

GeForce GTX 490

VS

Radeon X800 GTO

Graphics Card

Unknown

Release Date

Dec 2007

GeForce 400

Generation

Radeon R400 PCIe

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

854 MHz

Memory Clock

350 MHz

Memory

1536MB

Memory Size

128MB

GDDR5

Memory Type

DDR

384bit

Memory Bus

256bit

164.0GB/s

Bandwidth

22.40GB/s

Render Config

-

15

SM Count

-

480

Shading Units

-

60

TMUs

12

48

ROPs

12

-

64 KB (per SM)

L1 Cache

-

768 KB

L2 Cache

-

Theoretical Performance

18.24 GPixel/s

Pixel Rate

4.800 GPixel/s

36.48 GTexel/s

Texture Rate

4.800 GTexel/s

-

1166 GFLOPS

FP32 (float)

-

145.8 GFLOPS

FP64 (double)

-

Board Design

365W

TDP

49W

750 W

Suggested PSU

200 W

3x DVI 1x mini-DisplayPort

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

-

Graphics Processor

GF100

GPU Name

R423

GF100-375-A3

GPU Variant

R423 GTO

Fermi

Architecture

R400

TSMC

Foundry

TSMC

40 nm

Process Size

130 nm

3.1 billion

Transistors

0.16 billion

529 mm²

Die Size

289 mm²

Graphics Features

12 (11_0)

DirectX

9.0b (9_2)

4.6

OpenGL

2.1

1.1

OpenCL

N/A

Vulkan

N/A

2.0

CUDA

-

5.1

Shader Model

-

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