AMD Radeon R9 390 X2 vs NVIDIA GeForce GT 720

VS

AMD Radeon R9 390 X2

NVIDIA GeForce GT 720

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 1024MB VRAM GeForce GT 720 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 late

More VRAM (8GB vs 1024GB)

Larger VRAM bandwidth (345.6GB/s vs 12.80GB/s)

2368 additional rendering cores

NVIDIA GeForce GT 720 's Advantages

Lower TDP (19W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +1573%

5.12 TFLOPS

GeForce GT 720

0.306 TFLOPS

Radeon R9 390 X2

VS

GeForce GT 720

Graphics Card

Sep 2015

Release Date

Sep 2014

Pirate Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

1350 MHz

Memory Clock

800 MHz

Memory

8GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

512bit

Memory Bus

64bit

345.6GB/s

Bandwidth

12.80GB/s

Render Config

40

Compute Units

-

2560

Shading Units

192

160

TMUs

16

64

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

3.188 GPixel/s

160.0 GTexel/s

Texture Rate

12.75 GTexel/s

-

5.120 TFLOPS

FP32 (float)

306.0 GFLOPS

640.0 GFLOPS

FP64 (double)

12.75 GFLOPS

Board Design

580W

TDP

19W

950 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

4x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

GK208B

Grenada PRO (215-0880030)

GPU Variant

-

GCN 2.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

1.02 billion

438 mm²

Die Size

87 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.0

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

6.3

Shader Model

5.1

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