NVIDIA GeForce GTX 275 PhysX Edition vs ATI Radeon HD 4850 X2

VS

NVIDIA GeForce GTX 275 PhysX Edition

ATI Radeon HD 4850 X2

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 512MB VRAM Radeon HD 4850 X2 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 3 months late

More VRAM (896GB vs 512GB)

Larger VRAM bandwidth (127.0GB/s vs 63.68GB/s)

Lower TDP (219W vs 250W)

ATI Radeon HD 4850 X2 's Advantages

560 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon HD 4850 X2 +60%

1 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 4850 X2

Graphics Card

Feb 2010

Release Date

Nov 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

995 MHz

Memory

896MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

448bit

Memory Bus

256bit

127.0GB/s

Bandwidth

63.68GB/s

Render Config

-

Compute Units

10

30

SM Count

-

240

Shading Units

800

80

TMUs

40

28

ROPs

16

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

256 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

10.00 GPixel/s

50.64 GTexel/s

Texture Rate

25.00 GTexel/s

-

622.1 GFLOPS

FP32 (float)

1000 GFLOPS

77.76 GFLOPS

FP64 (double)

200.0 GFLOPS

Board Design

219W

TDP

250W

550 W

Suggested PSU

600 W

2x DVI

Outputs

4x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

G92B

GPU Name

R700

G92-421-B1

GPU Variant

R700 PRO (215-0669065)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.754 billion

Transistors

0.956 billion

260 mm²

Die Size

256 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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