NVIDIA GeForce GTX 275 PhysX Edition vs ATI Radeon HD 4890

VS

NVIDIA GeForce GTX 275 PhysX Edition

ATI Radeon HD 4890

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 1024MB VRAM Radeon HD 4890 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 10 months late

Larger VRAM bandwidth (127.0GB/s vs 124.8GB/s)

ATI Radeon HD 4890 's Advantages

More VRAM (1024GB vs 896GB)

560 additional rendering cores

Lower TDP (190W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon HD 4890 +118%

1.36 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 4890

Graphics Card

Feb 2010

Release Date

Apr 2009

GeForce 200

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1134 MHz

Memory Clock

975 MHz

Memory

896MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

256bit

127.0GB/s

Bandwidth

124.8GB/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

13.60 GPixel/s

50.64 GTexel/s

Texture Rate

34.00 GTexel/s

-

622.1 GFLOPS

FP32 (float)

1360 GFLOPS

77.76 GFLOPS

FP64 (double)

272.0 GFLOPS

Board Design

219W

TDP

190W

550 W

Suggested PSU

450 W

2x DVI

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

G92B

GPU Name

RV790

G92-421-B1

GPU Variant

RV790 XT (215-0758016)

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.754 billion

Transistors

0.959 billion

260 mm²

Die Size

282 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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