AMD Radeon R9 280X2 vs NVIDIA GeForce GTX 745 OEM

VS

AMD Radeon R9 280X2

NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 and 4GB VRAM GeForce GTX 745 OEM 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

Larger VRAM bandwidth (288.0GB/s vs 28.80GB/s)

1664 additional rendering cores

NVIDIA GeForce GTX 745 OEM 's Advantages

More VRAM (4GB vs 3GB)

Lower TDP (55W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2 +416%

4.096 TFLOPS

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon R9 280X2

VS

GeForce GTX 745 OEM

Graphics Card

Unknown

Release Date

Feb 2014

Volcanic Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

28.80GB/s

Render Config

32

Compute Units

-

2048

Shading Units

384

128

TMUs

24

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

16.53 GPixel/s

128.0 GTexel/s

Texture Rate

24.79 GTexel/s

-

4.096 TFLOPS

FP32 (float)

793.3 GFLOPS

1024 GFLOPS

FP64 (double)

24.79 GFLOPS

Board Design

375W

TDP

55W

750 W

Suggested PSU

250 W

6x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 2.0 1x VGA

3x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GM107

Tahiti XTL (215-0821065)

GPU Variant

GM107-220-A2

GCN 1.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.87 billion

352 mm²

Die Size

148 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

5.1

Shader Model

5.1

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