NVIDIA GeForce GTX 680 vs ATI Radeon HD 4450

VS

NVIDIA GeForce GTX 680

ATI Radeon HD 4450

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 680 and 512MB VRAM Radeon HD 4450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 680 's Advantages

Boost Clock1058MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.3GB/s vs 6.400GB/s)

1456 additional rendering cores

ATI Radeon HD 4450 's Advantages

Lower TDP (25W vs 195W)

Score

Benchmark

FP32 (float)

GeForce GTX 680 +3285%

3.25 TFLOPS

Radeon HD 4450

0.096 TFLOPS

GeForce GTX 680

VS

Radeon HD 4450

Graphics Card

Mar 2012

Release Date

Nov 2011

GeForce 600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1006 MHz

Base Clock

-

1058 MHz

Boost Clock

-

1502 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

192.3GB/s

Bandwidth

6.400GB/s

Render Config

-

Compute Units

1

-

1536

Shading Units

80

128

TMUs

8

32

ROPs

4

-

16 KB (per SMX)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

64 KB

-

Theoretical Performance

33.86 GPixel/s

Pixel Rate

2.400 GPixel/s

135.4 GTexel/s

Texture Rate

4.800 GTexel/s

-

3.250 TFLOPS

FP32 (float)

96.00 GFLOPS

135.4 GFLOPS

FP64 (double)

-

Board Design

195W

TDP

25W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.0

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

RV710

GK104-400-A2

GPU Variant

RV710 (215-0725016)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

3.54 billion

Transistors

0.242 billion

294 mm²

Die Size

73 mm²

Graphics Features

12 (11_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.1

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