NVIDIA GeForce GTX 275 PhysX Edition vs NVIDIA GeForce GT 420 OEM

VS

NVIDIA GeForce GTX 275 PhysX Edition

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 1024MB VRAM GeForce GT 420 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

Larger VRAM bandwidth (127.0GB/s vs 28.80GB/s)

192 additional rendering cores

NVIDIA GeForce GT 420 OEM 's Advantages

Released 7 months late

More VRAM (1024GB vs 896GB)

Lower TDP (50W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition +364%

0.622 TFLOPS

GeForce GT 420 OEM

0.134 TFLOPS

GeForce GTX 275 PhysX Edition

VS

GeForce GT 420 OEM

Graphics Card

Feb 2010

Release Date

Sep 2010

GeForce 200

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

900 MHz

Memory

896MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

448bit

Memory Bus

128bit

127.0GB/s

Bandwidth

28.80GB/s

Render Config

-

30

SM Count

1

240

Shading Units

48

80

TMUs

4

28

ROPs

4

-

L1 Cache

64 KB (per SM)

224 KB

L2 Cache

256 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

1.400 GPixel/s

50.64 GTexel/s

Texture Rate

2.800 GTexel/s

-

622.1 GFLOPS

FP32 (float)

134.4 GFLOPS

77.76 GFLOPS

FP64 (double)

11.20 GFLOPS

Board Design

219W

TDP

50W

550 W

Suggested PSU

250 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

GF108

G92-421-B1

GPU Variant

GF108-200-A1

Tesla

Architecture

Fermi

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.754 billion

Transistors

0.585 billion

260 mm²

Die Size

116 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.3

CUDA

2.1

4.0

Shader Model

5.1

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