ATI Radeon HD 2600 XT Mac Edition vs NVIDIA GeForce GTX 680

VS

ATI Radeon HD 2600 XT Mac Edition

NVIDIA GeForce GTX 680

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 2GB VRAM GeForce GTX 680 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

Lower TDP (45W vs 195W)

NVIDIA GeForce GTX 680 's Advantages

Released 4 years and 1 months late

Boost Clock1058MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (192.3GB/s vs 25.60GB/s)

1416 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

GeForce GTX 680 +1834%

3.25 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

GeForce GTX 680

Graphics Card

Feb 2008

Release Date

Mar 2012

Radeon R600

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1006 MHz

-

Boost Clock

1058 MHz

800 MHz

Memory Clock

1502 MHz

Memory

256MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

192.3GB/s

Render Config

3

Compute Units

-

120

Shading Units

1536

8

TMUs

128

4

ROPs

32

-

L1 Cache

16 KB (per SMX)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

33.86 GPixel/s

5.600 GTexel/s

Texture Rate

135.4 GTexel/s

-

168.0 GFLOPS

FP32 (float)

3.250 TFLOPS

-

FP64 (double)

135.4 GFLOPS

Board Design

45W

TDP

195W

200 W

Suggested PSU

450 W

2x DVI

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

None

Power Connectors

2x 6-pin

Graphics Processor

RV630

GPU Name

GK104

-

GPU Variant

GK104-400-A2

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.39 billion

Transistors

3.54 billion

153 mm²

Die Size

294 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

N/A

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

4.0

Shader Model

5.1

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