NVIDIA GeForce GTX 275 PhysX Edition vs ATI Radeon HD 4650

VS

NVIDIA GeForce GTX 275 PhysX Edition

ATI Radeon HD 4650

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 256MB VRAM Radeon HD 4650 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

Released 1 years and 5 months late

More VRAM (896GB vs 256GB)

Larger VRAM bandwidth (127.0GB/s vs 22.40GB/s)

ATI Radeon HD 4650 's Advantages

80 additional rendering cores

Lower TDP (48W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition +61%

0.622 TFLOPS

Radeon HD 4650

0.384 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 4650

Graphics Card

Feb 2010

Release Date

Sep 2008

GeForce 200

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

700 MHz

Memory

896MB

Memory Size

256MB

GDDR3

Memory Type

GDDR3

448bit

Memory Bus

128bit

127.0GB/s

Bandwidth

22.40GB/s

Render Config

-

Compute Units

4

30

SM Count

-

240

Shading Units

320

80

TMUs

32

28

ROPs

8

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

128 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

4.800 GPixel/s

50.64 GTexel/s

Texture Rate

19.20 GTexel/s

-

622.1 GFLOPS

FP32 (float)

384.0 GFLOPS

77.76 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

48W

550 W

Suggested PSU

200 W

2x DVI

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

G92B

GPU Name

RV730

G92-421-B1

GPU Variant

RV730 PRO (215-0719056)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.754 billion

Transistors

0.514 billion

260 mm²

Die Size

146 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.3

CUDA

-

4.0

Shader Model

4.1

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