NVIDIA GeForce GTX 275 PhysX Edition vs AMD Radeon HD 6990

VS

NVIDIA GeForce GTX 275 PhysX Edition

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 2GB VRAM Radeon HD 6990 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

Lower TDP (219W vs 375W)

AMD Radeon HD 6990 's Advantages

Released 1 years and 1 months late

More VRAM (2GB vs 896GB)

Larger VRAM bandwidth (160.0GB/s vs 127.0GB/s)

1296 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon HD 6990 +309%

2.55 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 6990

Graphics Card

Feb 2010

Release Date

Mar 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

1250 MHz

Memory

896MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

256bit

127.0GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

24

30

SM Count

-

240

Shading Units

1536

80

TMUs

96

28

ROPs

32

-

L1 Cache

8 KB (per CU)

224 KB

L2 Cache

512 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

26.56 GPixel/s

50.64 GTexel/s

Texture Rate

79.68 GTexel/s

-

622.1 GFLOPS

FP32 (float)

2.550 TFLOPS

77.76 GFLOPS

FP64 (double)

637.4 GFLOPS

Board Design

219W

TDP

375W

550 W

Suggested PSU

750 W

2x DVI

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

G92B

GPU Name

Antilles

G92-421-B1

GPU Variant

Antilles XT (215-0807027)

Tesla

Architecture

TeraScale 3

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.754 billion

Transistors

2.64 billion

260 mm²

Die Size

389 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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