AMD Radeon HD 6450 OEM vs NVIDIA GeForce GTX 645 OEM

VS

AMD Radeon HD 6450 OEM

NVIDIA GeForce GTX 645 OEM

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 OEM and 1024MB VRAM GeForce GTX 645 OEM 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 65W)

NVIDIA GeForce GTX 645 OEM 's Advantages

Released 2 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (64.00GB/s vs 8.528GB/s)

416 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450 OEM

0.2 TFLOPS

GeForce GTX 645 OEM +374%

0.949 TFLOPS

Radeon HD 6450 OEM

VS

GeForce GTX 645 OEM

Graphics Card

Feb 2011

Release Date

Apr 2013

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

533 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

128bit

8.528GB/s

Bandwidth

64.00GB/s

Render Config

2

Compute Units

-

160

Shading Units

576

8

TMUs

48

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

9.888 GPixel/s

5.000 GTexel/s

Texture Rate

39.55 GTexel/s

-

200.0 GFLOPS

FP32 (float)

949.2 GFLOPS

-

FP64 (double)

39.55 GFLOPS

Board Design

18W

TDP

65W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

None

Graphics Processor

Caicos

GPU Name

GK106

Junbonator

GPU Variant

GK106-200-A1

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

2.54 billion

67 mm²

Die Size

221 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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