NVIDIA GeForce GTX 490 vs AMD Radeon R9 280X

VS

NVIDIA GeForce GTX 490

AMD Radeon R9 280X

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 and 3GB VRAM Radeon R9 280X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 1536GB)

Larger VRAM bandwidth (288.0GB/s vs 164.0GB/s)

1568 additional rendering cores

Lower TDP (250W vs 365W)

Score

Benchmark

FP32 (float)

GeForce GTX 490

1.166 TFLOPS

Radeon R9 280X +251%

4.096 TFLOPS

GeForce GTX 490

VS

Radeon R9 280X

Graphics Card

Unknown

Release Date

Oct 2013

GeForce 400

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

850 MHz

-

Boost Clock

1000 MHz

854 MHz

Memory Clock

1500 MHz

Memory

1536MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

164.0GB/s

Bandwidth

288.0GB/s

Render Config

-

Compute Units

32

15

SM Count

-

480

Shading Units

2048

60

TMUs

128

48

ROPs

32

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

-

Theoretical Performance

18.24 GPixel/s

Pixel Rate

32.00 GPixel/s

36.48 GTexel/s

Texture Rate

128.0 GTexel/s

-

1166 GFLOPS

FP32 (float)

4.096 TFLOPS

145.8 GFLOPS

FP64 (double)

1024 GFLOPS

Board Design

365W

TDP

250W

750 W

Suggested PSU

600 W

3x DVI 1x mini-DisplayPort

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GF100

GPU Name

Tahiti

GF100-375-A3

GPU Variant

Tahiti XTL (215-0821065)

Fermi

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

3.1 billion

Transistors

4.313 billion

529 mm²

Die Size

352 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.0

CUDA

-

5.1

Shader Model

5.1

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