NVIDIA GeForce GTX 780 Rev. 2 vs ATI Radeon HD 4650

VS

NVIDIA GeForce GTX 780 Rev. 2

ATI Radeon HD 4650

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 Rev. 2 and 256MB VRAM Radeon HD 4650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 780 Rev. 2 's Advantages

Released 5 years late

Boost Clock902MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (288.4GB/s vs 22.40GB/s)

1984 additional rendering cores

ATI Radeon HD 4650 's Advantages

Lower TDP (48W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 Rev. 2 +982%

4.156 TFLOPS

Radeon HD 4650

0.384 TFLOPS

GeForce GTX 780 Rev. 2

VS

Radeon HD 4650

Graphics Card

Sep 2013

Release Date

Sep 2008

GeForce 700

Generation

Radeon R700

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

700 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

288.4GB/s

Bandwidth

22.40GB/s

Render Config

-

Compute Units

4

-

2304

Shading Units

320

192

TMUs

32

48

ROPs

8

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

1536 KB

L2 Cache

128 KB

-

Theoretical Performance

43.30 GPixel/s

Pixel Rate

4.800 GPixel/s

173.2 GTexel/s

Texture Rate

19.20 GTexel/s

-

4.156 TFLOPS

FP32 (float)

384.0 GFLOPS

173.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

48W

600 W

Suggested PSU

200 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

-

Graphics Processor

GK110B

GPU Name

RV730

GK110-300-B1

GPU Variant

RV730 PRO (215-0719056)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

7.08 billion

Transistors

0.514 billion

561 mm²

Die Size

146 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

-

5.1

Shader Model

4.1

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