AMD Radeon R9 390 X2 vs NVIDIA GeForce GTX 780 6 GB

VS

AMD Radeon R9 390 X2

NVIDIA GeForce GTX 780 6 GB

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 6GB VRAM GeForce GTX 780 6 GB 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 2 years late

More VRAM (8GB vs 6GB)

Larger VRAM bandwidth (345.6GB/s vs 288.4GB/s)

256 additional rendering cores

NVIDIA GeForce GTX 780 6 GB 's Advantages

Boost Clock902MHz

Lower TDP (250W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +23%

5.12 TFLOPS

GeForce GTX 780 6 GB

4.156 TFLOPS

Radeon R9 390 X2

VS

GeForce GTX 780 6 GB

Graphics Card

Sep 2015

Release Date

Sep 2013

Pirate Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

863 MHz

-

Boost Clock

902 MHz

1350 MHz

Memory Clock

1502 MHz

Memory

8GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

384bit

345.6GB/s

Bandwidth

288.4GB/s

Render Config

40

Compute Units

-

2560

Shading Units

2304

160

TMUs

192

64

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

1536 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

43.30 GPixel/s

160.0 GTexel/s

Texture Rate

173.2 GTexel/s

-

5.120 TFLOPS

FP32 (float)

4.156 TFLOPS

640.0 GFLOPS

FP64 (double)

173.2 GFLOPS

Board Design

580W

TDP

250W

950 W

Suggested PSU

600 W

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

Outputs

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

4x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Grenada

GPU Name

GK110B

Grenada PRO (215-0880030)

GPU Variant

GK110-301-B1

GCN 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

7.08 billion

438 mm²

Die Size

561 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

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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