NVIDIA GeForce GTX 650 vs ATI Radeon HD 2600 XT Mac Edition

VS

NVIDIA GeForce GTX 650

ATI Radeon HD 2600 XT Mac Edition

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 650 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 650 's Advantages

Released 4 years and 7 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (80.00GB/s vs 25.60GB/s)

264 additional rendering cores

ATI Radeon HD 2600 XT Mac Edition 's Advantages

Lower TDP (45W vs 65W)

Score

Benchmark

FP32 (float)

GeForce GTX 650 +383%

0.812 TFLOPS

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

GeForce GTX 650

VS

Radeon HD 2600 XT Mac Edition

Graphics Card

Sep 2012

Release Date

Feb 2008

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

128bit

Memory Bus

128bit

80.00GB/s

Bandwidth

25.60GB/s

Render Config

-

Compute Units

3

-

384

Shading Units

120

32

TMUs

8

16

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

8.464 GPixel/s

Pixel Rate

2.800 GPixel/s

33.86 GTexel/s

Texture Rate

5.600 GTexel/s

-

812.5 GFLOPS

FP32 (float)

168.0 GFLOPS

33.86 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

45W

250 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.4a

Outputs

2x DVI

1x 6-pin

Power Connectors

None

Graphics Processor

GK107

GPU Name

RV630

GK107-450-A2

GPU Variant

-

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

65 nm

1.27 billion

Transistors

0.39 billion

118 mm²

Die Size

153 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.0

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