GeForce GTX 780 vs Radeon HD 6450

VS

NVIDIA GeForce GTX 780

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

GeForce GTX 780 's Advantages

Released 2 years and 1 months late

Boost Clock902MHz

More VRAM (3GB vs 512GB)

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

2144 additional rendering cores

Radeon HD 6450 's Advantages

Lower TDP (18W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 +1978%

4156

Radeon HD 6450

200

GeForce GTX 780

VS

Radeon HD 6450

Graphics Card

May 2013

Release Date

Apr 2011

GeForce 700

Generation

Northern Islands

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

512MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

64bit

288.4GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

2304

Shading Units

160

192

TMUs

8

48

ROPs

4

16 KB (per SMX)

L1 Cache

8 KB (per CU)

1536 KB

L2 Cache

128 KB

Theoretical Performance

43.30 GPixel/s

Pixel Rate

2.500 GPixel/s

173.2 GTexel/s

Texture Rate

5.000 GTexel/s

4.156 TFLOPS

FP32 (float)

200.0 GFLOPS

173.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

18W

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

GK110

GPU Name

Caicos

GK110-300-A1

GPU Variant

Caicos PRO

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

7.08 billion

Transistors

0.37 billion

561 mm²

Die Size

67 mm²

Graphics Features

12 (11_0)

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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