NVIDIA GeForce GTX 780 Ti vs AMD Radeon HD 6490

VS

NVIDIA GeForce GTX 780 Ti

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 Ti and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

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

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 Ti +1418%

5.345 TFLOPS

Radeon HD 6490

0.352 TFLOPS

GeForce GTX 780 Ti

VS

Radeon HD 6490

Graphics Card

Nov 2013

Release Date

Jul 2011

GeForce 700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

875 MHz

Base Clock

-

928 MHz

Boost Clock

-

1753 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

128bit

336.6GB/s

Bandwidth

16.00GB/s

Render Config

-

Compute Units

4

-

2880

Shading Units

320

240

TMUs

16

48

ROPs

8

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

1536 KB

L2 Cache

256 KB

-

Theoretical Performance

55.68 GPixel/s

Pixel Rate

4.400 GPixel/s

222.7 GTexel/s

Texture Rate

8.800 GTexel/s

-

5.345 TFLOPS

FP32 (float)

352.0 GFLOPS

222.7 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

39W

600 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110B

GPU Name

Redwood

GK110-425-B1

GPU Variant

Redwood LE

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

7.08 billion

Transistors

0.627 billion

561 mm²

Die Size

104 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.1

Vulkan

N/A

3.5

CUDA

-

5.1

Shader Model

5.0

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