AMD Radeon Sky 900 vs NVIDIA GeForce GTX 480

VS

AMD Radeon Sky 900

NVIDIA GeForce GTX 480

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 1536MB VRAM GeForce GTX 480 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 900 's Advantages

Released 3 years late

Boost Clock950MHz

More VRAM (3GB vs 1536GB)

Larger VRAM bandwidth (240.0GB/s vs 177.4GB/s)

1312 additional rendering cores

NVIDIA GeForce GTX 480 's Advantages

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +153%

3.405 TFLOPS

GeForce GTX 480

1.345 TFLOPS

Radeon Sky 900

VS

GeForce GTX 480

Graphics Card

Mar 2013

Release Date

Mar 2010

Radeon Sky

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

825 MHz

Base Clock

-

950 MHz

Boost Clock

-

1250 MHz

Memory Clock

924 MHz

Memory

3GB

Memory Size

1536MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

177.4GB/s

Render Config

28

Compute Units

-

SM Count

15

1792

Shading Units

480

112

TMUs

60

32

ROPs

48

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

768 KB

-

Theoretical Performance

30.40 GPixel/s

Pixel Rate

21.03 GPixel/s

106.4 GTexel/s

Texture Rate

42.06 GTexel/s

-

3.405 TFLOPS

FP32 (float)

1345 GFLOPS

851.2 GFLOPS

FP64 (double)

168.1 GFLOPS

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

2x DVI 1x mini-HDMI 1.3a

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

GF100

Orthrus

GPU Variant

GF100-375-A3

GCN 1.0

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

3.1 billion

352 mm²

Die Size

529 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.0

5.1

Shader Model

5.1

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