NVIDIA GeForce GTX 275 PhysX Edition vs AMD Radeon HD 6850 X2

VS

NVIDIA GeForce GTX 275 PhysX Edition

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 2GB VRAM Radeon HD 6850 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

Lower TDP (219W vs 254W)

AMD Radeon HD 6850 X2 's Advantages

Released 1 years and 7 months late

More VRAM (2GB vs 896GB)

Larger VRAM bandwidth (134.4GB/s vs 127.0GB/s)

720 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon HD 6850 X2 +146%

1.536 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon HD 6850 X2

Graphics Card

Feb 2010

Release Date

Sep 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

1050 MHz

Memory

896MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

256bit

127.0GB/s

Bandwidth

134.4GB/s

Render Config

-

Compute Units

12

30

SM Count

-

240

Shading Units

960

80

TMUs

48

28

ROPs

32

-

L1 Cache

8 KB (per CU)

224 KB

L2 Cache

512 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

25.60 GPixel/s

50.64 GTexel/s

Texture Rate

38.40 GTexel/s

-

622.1 GFLOPS

FP32 (float)

1.536 TFLOPS

77.76 GFLOPS

FP64 (double)

-

Board Design

219W

TDP

254W

550 W

Suggested PSU

600 W

2x DVI

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

G92B

GPU Name

Barts

G92-421-B1

GPU Variant

Barts PRO (215-0798006)

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.754 billion

Transistors

1.7 billion

260 mm²

Die Size

255 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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