AMD Radeon HD 6450 OEM vs NVIDIA GeForce GTX 680 Mac Edition

VS

AMD Radeon HD 6450 OEM

NVIDIA GeForce GTX 680 Mac Edition

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 2GB VRAM GeForce GTX 680 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 OEM 's Advantages

Lower TDP (18W vs 195W)

NVIDIA GeForce GTX 680 Mac Edition 's Advantages

Released 2 years and 2 months late

Boost Clock1058MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.3GB/s vs 8.528GB/s)

1376 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

GeForce GTX 680 Mac Edition +1525%

3.25 TFLOPS

Radeon HD 6450 OEM

VS

GeForce GTX 680 Mac Edition

Graphics Card

Feb 2011

Release Date

Apr 2013

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1058 MHz

533 MHz

Memory Clock

1502 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

8.528GB/s

Bandwidth

192.3GB/s

Render Config

2

Compute Units

-

160

Shading Units

1536

8

TMUs

128

4

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

33.86 GPixel/s

5.000 GTexel/s

Texture Rate

135.4 GTexel/s

-

200.0 GFLOPS

FP32 (float)

3.250 TFLOPS

-

FP64 (double)

135.4 GFLOPS

Board Design

18W

TDP

195W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

Caicos

GPU Name

GK104

Junbonator

GPU Variant

GK104-400-A2

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

3.54 billion

67 mm²

Die Size

294 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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