NVIDIA GeForce 9800 GX2 vs AMD Radeon Sky 900

VS

NVIDIA GeForce 9800 GX2

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9800 GX2 and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9800 GX2 's Advantages

Lower TDP (197W vs 300W)

AMD Radeon Sky 900 's Advantages

Released 5 years late

Boost Clock950MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 64.00GB/s)

1664 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 9800 GX2

0.384 TFLOPS

Radeon Sky 900 +786%

3.405 TFLOPS

GeForce 9800 GX2

VS

Radeon Sky 900

Graphics Card

Mar 2008

Release Date

Mar 2013

GeForce 9

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

825 MHz

-

Boost Clock

950 MHz

1000 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

384bit

64.00GB/s

Bandwidth

240.0GB/s

Render Config

-

Compute Units

28

16

SM Count

-

128

Shading Units

1792

64

TMUs

112

16

ROPs

32

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

768 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

30.40 GPixel/s

38.40 GTexel/s

Texture Rate

106.4 GTexel/s

-

384.0 GFLOPS

FP32 (float)

3.405 TFLOPS

-

FP64 (double)

851.2 GFLOPS

Board Design

197W

TDP

300W

450 W

Suggested PSU

700 W

2x DVI 1x HDMI

Outputs

1x DVI 1x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

G92

GPU Name

Tahiti

G92-450-A2

GPU Variant

Orthrus

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.754 billion

Transistors

4.313 billion

324 mm²

Die Size

352 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.1

CUDA

-

4.0

Shader Model

5.1

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