NVIDIA GeForce GTX 780 vs ATI Radeon HD 3650

VS

NVIDIA GeForce GTX 780

ATI Radeon HD 3650

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 and 256MB VRAM Radeon HD 3650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 's Advantages

Released 5 years and 4 months late

Boost Clock902MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (288.4GB/s vs 25.60GB/s)

2184 additional rendering cores

ATI Radeon HD 3650 's Advantages

Lower TDP (65W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 +2288%

4.156 TFLOPS

Radeon HD 3650

0.174 TFLOPS

GeForce GTX 780

VS

Radeon HD 3650

Graphics Card

May 2013

Release Date

Jan 2008

GeForce 700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

288.4GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

3

-

2304

Shading Units

120

192

TMUs

8

48

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

1536 KB

L2 Cache

128 KB

-

Theoretical Performance

43.30 GPixel/s

Pixel Rate

2.900 GPixel/s

173.2 GTexel/s

Texture Rate

5.800 GTexel/s

-

4.156 TFLOPS

FP32 (float)

174.0 GFLOPS

173.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

65W

600 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110

GPU Name

RV635

GK110-300-A1

GPU Variant

RV635 PRO (215-0682008)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

7.08 billion

Transistors

0.378 billion

561 mm²

Die Size

135 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.5

CUDA

-

5.1

Shader Model

4.1

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