ATI Radeon HD 2600 XT Mac Edition vs NVIDIA GeForce GT 620

VS

ATI Radeon HD 2600 XT Mac Edition

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2600 XT Mac Edition 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 14.40GB/s)

24 additional rendering cores

Lower TDP (45W vs 49W)

NVIDIA GeForce GT 620 's Advantages

Released 4 years and 3 months late

More VRAM (1024GB vs 256GB)

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

GeForce GT 620 +60%

0.269 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

GeForce GT 620

Graphics Card

Feb 2008

Release Date

May 2012

Radeon R600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

900 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

14.40GB/s

Render Config

3

Compute Units

-

SM Count

2

120

Shading Units

96

8

TMUs

16

4

ROPs

4

-

L1 Cache

64 KB (per SM)

64 KB

L2 Cache

128 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

2.800 GPixel/s

5.600 GTexel/s

Texture Rate

11.20 GTexel/s

-

168.0 GFLOPS

FP32 (float)

268.8 GFLOPS

-

FP64 (double)

22.40 GFLOPS

Board Design

45W

TDP

49W

200 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

RV630

GPU Name

GF108

-

GPU Variant

GF108-100-KB-A1

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.39 billion

Transistors

0.585 billion

153 mm²

Die Size

116 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

4.0

Shader Model

5.1

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