AMD Radeon R9 280X2 vs NVIDIA GeForce GTX 490

VS

AMD Radeon R9 280X2

NVIDIA GeForce GTX 490

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 and 1536MB VRAM GeForce GTX 490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 1536GB)

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

1568 additional rendering cores

NVIDIA GeForce GTX 490 's Advantages

Lower TDP (365W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2 +251%

4.096 TFLOPS

GeForce GTX 490

1.166 TFLOPS

Radeon R9 280X2

VS

GeForce GTX 490

Graphics Card

Unknown

Release Date

Unknown

Volcanic Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

854 MHz

Memory

3GB

Memory Size

1536MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

288.0GB/s

Bandwidth

164.0GB/s

Render Config

32

Compute Units

-

SM Count

15

2048

Shading Units

480

128

TMUs

60

32

ROPs

48

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

768 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

18.24 GPixel/s

128.0 GTexel/s

Texture Rate

36.48 GTexel/s

-

4.096 TFLOPS

FP32 (float)

1166 GFLOPS

1024 GFLOPS

FP64 (double)

145.8 GFLOPS

Board Design

375W

TDP

365W

750 W

Suggested PSU

750 W

6x mini-DisplayPort 1.2

Outputs

3x DVI 1x mini-DisplayPort

3x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Tahiti

GPU Name

GF100

Tahiti XTL (215-0821065)

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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