AMD Radeon R9 270 vs ATI Radeon X800 GT AGP

VS

AMD Radeon R9 270

ATI Radeon X800 GT AGP

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 and 256MB VRAM Radeon X800 GT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270 's Advantages

Released 6 years late

Boost Clock925MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (179.2GB/s vs 31.55GB/s)

1280 additional rendering cores

ATI Radeon X800 GT AGP 's Advantages

Lower TDP (40W vs 150W)

Score

Radeon R9 270

VS

Radeon X800 GT AGP

Graphics Card

Nov 2013

Release Date

Nov 2007

Volcanic Islands

Generation

Radeon R400 AGP

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

493 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

179.2GB/s

Bandwidth

31.55GB/s

Render Config

20

Compute Units

-

1280

Shading Units

-

80

TMUs

8

32

ROPs

8

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

3.784 GPixel/s

74.00 GTexel/s

Texture Rate

3.784 GTexel/s

-

2.368 TFLOPS

FP32 (float)

-

148.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

40W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

1x Molex

Graphics Processor

Curacao

GPU Name

R420

Curacao PRO (215-0848000)

GPU Variant

R420 GT (215RAACGA12F)

GCN 1.0

Architecture

R400

TSMC

Foundry

TSMC

28 nm

Process Size

130 nm

2.8 billion

Transistors

0.16 billion

212 mm²

Die Size

281 mm²

Graphics Features

12 (11_1)

DirectX

9.0b (9_2)

4.6

OpenGL

2.1

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

-

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