NVIDIA GeForce GTX 275 PhysX Edition vs AMD Radeon R9 255 OEM

VS

NVIDIA GeForce GTX 275 PhysX Edition

AMD Radeon R9 255 OEM

We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 275 PhysX Edition and 2GB VRAM Radeon R9 255 OEM 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

Larger VRAM bandwidth (127.0GB/s vs 73.60GB/s)

AMD Radeon R9 255 OEM 's Advantages

Released 3 years and 10 months late

Boost Clock930MHz

More VRAM (2GB vs 896GB)

272 additional rendering cores

Lower TDP (65W vs 219W)

Score

Benchmark

FP32 (float)

GeForce GTX 275 PhysX Edition

0.622 TFLOPS

Radeon R9 255 OEM +53%

0.952 TFLOPS

GeForce GTX 275 PhysX Edition

VS

Radeon R9 255 OEM

Graphics Card

Feb 2010

Release Date

Dec 2013

GeForce 200

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

900 MHz

-

Boost Clock

930 MHz

1134 MHz

Memory Clock

1150 MHz

Memory

896MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

448bit

Memory Bus

128bit

127.0GB/s

Bandwidth

73.60GB/s

Render Config

-

Compute Units

8

30

SM Count

-

240

Shading Units

512

80

TMUs

32

28

ROPs

16

-

L1 Cache

16 KB (per CU)

224 KB

L2 Cache

256 KB

-

Theoretical Performance

17.72 GPixel/s

Pixel Rate

14.88 GPixel/s

50.64 GTexel/s

Texture Rate

29.76 GTexel/s

-

622.1 GFLOPS

FP32 (float)

952.3 GFLOPS

77.76 GFLOPS

FP64 (double)

59.52 GFLOPS

Board Design

219W

TDP

65W

550 W

Suggested PSU

250 W

2x DVI

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

G92B

GPU Name

Cape Verde

G92-421-B1

GPU Variant

Cape Verde PRX

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.754 billion

Transistors

1.5 billion

260 mm²

Die Size

123 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.3

CUDA

-

4.0

Shader Model

5.1

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