NVIDIA GeForce GTX 670 vs AMD Radeon HD 6450

VS

NVIDIA GeForce GTX 670

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 670 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 670 's Advantages

Released 1 years and 1 months late

Boost Clock980MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.3GB/s vs 25.60GB/s)

1184 additional rendering cores

AMD Radeon HD 6450 's Advantages

Lower TDP (18W vs 170W)

Score

Benchmark

FP32 (float)

GeForce GTX 670 +1217%

2.634 TFLOPS

Radeon HD 6450

0.2 TFLOPS

GeForce GTX 670

VS

Radeon HD 6450

Graphics Card

May 2012

Release Date

Apr 2011

GeForce 600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

915 MHz

Base Clock

-

980 MHz

Boost Clock

-

1502 MHz

Memory Clock

800 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

64bit

192.3GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

2

-

1344

Shading Units

160

112

TMUs

8

32

ROPs

4

-

16 KB (per SMX)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

27.44 GPixel/s

Pixel Rate

2.500 GPixel/s

109.8 GTexel/s

Texture Rate

5.000 GTexel/s

-

2.634 TFLOPS

FP32 (float)

200.0 GFLOPS

109.8 GFLOPS

FP64 (double)

-

Board Design

170W

TDP

18W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

Caicos

GK104-325-A2

GPU Variant

Caicos PRO

Kepler

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.37 billion

294 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

3.0

CUDA

-

5.1

Shader Model

5.0

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