NVIDIA GeForce 6800 vs AMD Radeon Sky 900

VS

NVIDIA GeForce 6800

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 256MB VRAM GeForce 6800 and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Released 8 years and 4 months late

Boost Clock950MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (240.0GB/s vs 19.20GB/s)

1792 additional rendering cores

Score

GeForce 6800

VS

Radeon Sky 900

Graphics Card

Nov 2004

Release Date

Mar 2013

GeForce 6 PCIe

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

825 MHz

-

Boost Clock

950 MHz

300 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

3GB

DDR

Memory Type

GDDR5

256bit

Memory Bus

384bit

19.20GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

-

Shading Units

1792

12

TMUs

112

8

ROPs

32

-

L1 Cache

16 KB (per CU)

-

L2 Cache

768 KB

-

Theoretical Performance

2.600 GPixel/s

Pixel Rate

30.40 GPixel/s

3.900 GTexel/s

Texture Rate

106.4 GTexel/s

-

FP32 (float)

3.405 TFLOPS

-

FP64 (double)

851.2 GFLOPS

Board Design

Unknown

TDP

300W

200 W

Suggested PSU

700 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

NV41

GPU Name

Tahiti

-

GPU Variant

Orthrus

Curie

Architecture

GCN 1.0

TSMC

Foundry

TSMC

130 nm

Process Size

28 nm

0.19 billion

Transistors

4.313 billion

225 mm²

Die Size

352 mm²

Graphics Features

9.0c (9_3)

DirectX

12 (11_1)

2.0 (full) 2.1 (partial)

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

3.0

Shader Model

5.1

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