AMD Radeon HD 6390 vs NVIDIA GeForce GTX 780 Ti

VS

AMD Radeon HD 6390

NVIDIA GeForce GTX 780 Ti

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6390 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 HD 6390 's Advantages

Lower TDP (39W vs 250W)

NVIDIA GeForce GTX 780 Ti 's Advantages

Released 2 years and 4 months late

Boost Clock928MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (336.6GB/s vs 16.00GB/s)

2560 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6390

0.352 TFLOPS

GeForce GTX 780 Ti +1418%

5.345 TFLOPS

Radeon HD 6390

VS

GeForce GTX 780 Ti

Graphics Card

Jul 2011

Release Date

Nov 2013

Northern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

500 MHz

Memory Clock

1753 MHz

Memory

1024MB

Memory Size

3GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

384bit

16.00GB/s

Bandwidth

336.6GB/s

Render Config

4

Compute Units

-

320

Shading Units

2880

16

TMUs

240

8

ROPs

48

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

1536 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

55.68 GPixel/s

8.800 GTexel/s

Texture Rate

222.7 GTexel/s

-

352.0 GFLOPS

FP32 (float)

5.345 TFLOPS

-

FP64 (double)

222.7 GFLOPS

Board Design

39W

TDP

250W

200 W

Suggested PSU

600 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Redwood

GPU Name

GK110B

Redwood LE

GPU Variant

GK110-425-B1

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.627 billion

Transistors

7.08 billion

104 mm²

Die Size

561 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

5.0

Shader Model

5.1

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