AMD Radeon R9 390X vs NVIDIA GeForce GTX 780 Ti

VS

AMD Radeon R9 390X

NVIDIA GeForce GTX 780 Ti

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 3GB VRAM GeForce GTX 780 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

Released 1 years and 7 months late

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (384.0GB/s vs 336.6GB/s)

NVIDIA GeForce GTX 780 Ti 's Advantages

Boost Clock928MHz

64 additional rendering cores

Lower TDP (250W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +10%

5.914 TFLOPS

GeForce GTX 780 Ti

5.345 TFLOPS

3DMark Time Spy

Radeon R9 390X +26%

4245

GeForce GTX 780 Ti

3355

Radeon R9 390X

VS

GeForce GTX 780 Ti

Graphics Card

Jun 2015

Release Date

Nov 2013

Pirate Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

1500 MHz

Memory Clock

1753 MHz

Memory

8GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

384bit

384.0GB/s

Bandwidth

336.6GB/s

Render Config

44

Compute Units

-

2816

Shading Units

2880

176

TMUs

240

64

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

1024 KB

L2 Cache

1536 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

55.68 GPixel/s

184.8 GTexel/s

Texture Rate

222.7 GTexel/s

-

5.914 TFLOPS

FP32 (float)

5.345 TFLOPS

739.2 GFLOPS

FP64 (double)

222.7 GFLOPS

Board Design

275W

TDP

250W

600 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

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Grenada

GPU Name

GK110B

Grenada XT (215-0880004)

GPU Variant

GK110-425-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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