AMD Radeon R9 255 OEM vs NVIDIA GeForce GTX 560 Ti X2

VS

AMD Radeon R9 255 OEM

NVIDIA GeForce GTX 560 Ti X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM and 1024MB VRAM GeForce GTX 560 Ti X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 255 OEM 's Advantages

Released 2 years and 11 months late

Boost Clock930MHz

More VRAM (2GB vs 1024GB)

128 additional rendering cores

Lower TDP (65W vs 170W)

NVIDIA GeForce GTX 560 Ti X2 's Advantages

Larger VRAM bandwidth (128.3GB/s vs 73.60GB/s)

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM

0.952 TFLOPS

GeForce GTX 560 Ti X2 +37%

1.306 TFLOPS

Radeon R9 255 OEM

VS

GeForce GTX 560 Ti X2

Graphics Card

Dec 2013

Release Date

Jan 2011

Volcanic Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

1002 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

256bit

73.60GB/s

Bandwidth

128.3GB/s

Render Config

8

Compute Units

-

SM Count

8

512

Shading Units

384

32

TMUs

64

16

ROPs

32

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

13.60 GPixel/s

29.76 GTexel/s

Texture Rate

54.40 GTexel/s

-

952.3 GFLOPS

FP32 (float)

1306 GFLOPS

59.52 GFLOPS

FP64 (double)

108.8 GFLOPS

Board Design

65W

TDP

170W

250 W

Suggested PSU

450 W

No outputs

Outputs

3x DVI 1x mini-HDMI 1.3a

1x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Cape Verde

GPU Name

GF114

Cape Verde PRX

GPU Variant

GF114-400-A1

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

1.5 billion

Transistors

1.95 billion

123 mm²

Die Size

332 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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