AMD Radeon R9 390 X2 vs NVIDIA GeForce GTX 745 OEM

VS

AMD Radeon R9 390 X2 NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 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 390 X2 's Advantages

Released 1 years and 7 months late

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (345.6GB/s vs 28.80GB/s)

2176 additional rendering cores

NVIDIA GeForce GTX 745 OEM 's Advantages

Lower TDP (55W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +545%

5.12 TFLOPS

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon R9 390 X2

VS

GeForce GTX 745 OEM

Graphics Card

Sep 2015

Release Date

Feb 2014

Pirate Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1350 MHz

Memory Clock

900 MHz

Memory

8GB

Memory Size

4GB

GDDR5

Memory Type

DDR3

512bit

Memory Bus

128bit

345.6GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

40

Compute Units

-

2560

Shading Units

384

160

TMUs

24

64

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

1024 KB

L2 Cache

2 MB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

16.53 GPixel/s

160.0 GTexel/s

Texture Rate

24.79 GTexel/s

-

FP16 (half)

-

5.120 TFLOPS

FP32 (float)

793.3 GFLOPS

640.0 GFLOPS

FP64 (double)

24.79 GFLOPS

Graphics Processor

Grenada

GPU Name

GM107

Grenada PRO (215-0880030)

GPU Variant

GM107-220-A2

GCN 2.0

Architecture

Maxwell

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

1.87 billion

438 mm²

Die Size

148 mm²

Board Design

580W

TDP

55W

950 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 2.0 1x VGA

4x 8-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.0

6.3

Shader Model

5.1

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