ATI Radeon HD 2900 XT vs NVIDIA GeForce 8800 GTS 320

VS

ATI Radeon HD 2900 XT

NVIDIA GeForce 8800 GTS 320

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 320MB VRAM GeForce 8800 GTS 320 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

More VRAM (512GB vs 320GB)

Larger VRAM bandwidth (106.0GB/s vs 63.36GB/s)

224 additional rendering cores

NVIDIA GeForce 8800 GTS 320 's Advantages

Lower TDP (143W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT +108%

0.476 TFLOPS

GeForce 8800 GTS 320

0.228 TFLOPS

Radeon HD 2900 XT

VS

GeForce 8800 GTS 320

Graphics Card

May 2007

Release Date

Feb 2007

Radeon R600

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

828 MHz

Memory Clock

792 MHz

Memory

512MB

Memory Size

320MB

GDDR3

Memory Type

GDDR3

512bit

Memory Bus

320bit

106.0GB/s

Bandwidth

63.36GB/s

Render Config

4

Compute Units

-

SM Count

12

320

Shading Units

96

16

TMUs

24

16

ROPs

20

-

256 KB

L2 Cache

80 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

10.26 GPixel/s

11.89 GTexel/s

Texture Rate

24.62 GTexel/s

-

475.5 GFLOPS

FP32 (float)

228.1 GFLOPS

-

Board Design

215W

TDP

143W

550 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

R600

GPU Name

G80

R600 XT (215RGMDKA13FG)

GPU Variant

G80-100-K0-A2

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

80 nm

Process Size

90 nm

0.72 billion

Transistors

0.681 billion

420 mm²

Die Size

484 mm²

Graphics Features

10.0 (10_0)

DirectX

11.1 (10_0)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1 (1.0)

N/A

Vulkan

N/A

-

CUDA

1.0

4.0

Shader Model

4.0

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