NVIDIA GeForce GTX 555 OEM vs ATI Radeon HD 2600 XT Mac Edition

VS

NVIDIA GeForce GTX 555 OEM

ATI Radeon HD 2600 XT Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 555 OEM and 256MB VRAM Radeon HD 2600 XT Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 555 OEM 's Advantages

Released 3 years and 3 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (91.87GB/s vs 25.60GB/s)

168 additional rendering cores

ATI Radeon HD 2600 XT Mac Edition 's Advantages

Lower TDP (45W vs 150W)

Score

Benchmark

FP32 (float)

GeForce GTX 555 OEM +404%

0.848 TFLOPS

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

GeForce GTX 555 OEM

VS

Radeon HD 2600 XT Mac Edition

Graphics Card

May 2011

Release Date

Feb 2008

GeForce 500

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

957 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

3

6

SM Count

-

288

Shading Units

120

48

TMUs

8

24

ROPs

4

-

64 KB (per SM)

L1 Cache

-

384 KB

L2 Cache

64 KB

-

Theoretical Performance

8.832 GPixel/s

Pixel Rate

2.800 GPixel/s

35.33 GTexel/s

Texture Rate

5.600 GTexel/s

-

847.9 GFLOPS

FP32 (float)

168.0 GFLOPS

70.66 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

45W

450 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

2x DVI

2x 6-pin

Power Connectors

None

Graphics Processor

GF114

GPU Name

RV630

GF114-200-KB-A1

GPU Variant

-

Fermi 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

1.95 billion

Transistors

0.39 billion

332 mm²

Die Size

153 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

4.0

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