NVIDIA GeForce GTX 275 PhysX Edition vs AMD Radeon HD 6450 OEM

VS

NVIDIA GeForce GTX 275 PhysX Edition

AMD Radeon HD 6450 OEM

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 512MB VRAM Radeon HD 6450 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 275 PhysX Edition 's Advantages

More VRAM (896GB vs 512GB)

Larger VRAM bandwidth (127.0GB/s vs 8.528GB/s)

80 additional rendering cores

AMD Radeon HD 6450 OEM 's Advantages

Released 1 years late

Lower TDP (18W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition +211%

0.622 TFLOPS

Radeon HD 6450 OEM

0.2 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 6450 OEM

Graphics Card

Feb 2010

Release Date

Feb 2011

GeForce 200

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

533 MHz

Memory

896MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

448bit

Memory Bus

64bit

127.0GB/s

Bandwidth

8.528GB/s

Render Config

-

Compute Units

2

30

SM Count

-

240

Shading Units

160

80

TMUs

8

28

ROPs

4

-

L1 Cache

8 KB (per CU)

224 KB

L2 Cache

128 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

2.500 GPixel/s

50.64 GTexel/s

Texture Rate

5.000 GTexel/s

-

622.1 GFLOPS

FP32 (float)

200.0 GFLOPS

77.76 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

18W

550 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

G92B

GPU Name

Caicos

G92-421-B1

GPU Variant

Junbonator

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.754 billion

Transistors

0.37 billion

260 mm²

Die Size

67 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

5.0

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