NVIDIA GeForce GTX 650 Ti Boost vs ATI Radeon HD 2900 XT

VS

NVIDIA GeForce GTX 650 Ti Boost

ATI Radeon HD 2900 XT

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 650 Ti Boost and 512MB VRAM Radeon HD 2900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 650 Ti Boost 's Advantages

Released 5 years and 10 months late

Boost Clock1032MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (144.2GB/s vs 106.0GB/s)

448 additional rendering cores

Lower TDP (134W vs 215W)

Score

Benchmark

FP32 (float)

GeForce GTX 650 Ti Boost +232%

1.585 TFLOPS

Radeon HD 2900 XT

0.476 TFLOPS

GeForce GTX 650 Ti Boost

VS

Radeon HD 2900 XT

Graphics Card

Mar 2013

Release Date

May 2007

GeForce 600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

828 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

512bit

144.2GB/s

Bandwidth

106.0GB/s

Render Config

-

Compute Units

4

-

768

Shading Units

320

64

TMUs

16

24

ROPs

16

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

256 KB

-

Theoretical Performance

16.51 GPixel/s

Pixel Rate

11.89 GPixel/s

66.05 GTexel/s

Texture Rate

11.89 GTexel/s

-

1.585 TFLOPS

FP32 (float)

475.5 GFLOPS

66.05 GFLOPS

FP64 (double)

-

Board Design

134W

TDP

215W

300 W

Suggested PSU

550 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GK106

GPU Name

R600

GK106-240-A1

GPU Variant

R600 XT (215RGMDKA13FG)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

2.54 billion

Transistors

0.72 billion

221 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.0

CUDA

-

5.1

Shader Model

4.0

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