AMD Radeon R9 280X2 vs ATI Radeon HD 3870 AGP

VS

AMD Radeon R9 280X2

ATI Radeon HD 3870 AGP

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 and 512MB VRAM Radeon HD 3870 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.0GB/s vs 72.06GB/s)

1728 additional rendering cores

ATI Radeon HD 3870 AGP 's Advantages

Lower TDP (106W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2 +724%

4.096 TFLOPS

Radeon HD 3870 AGP

0.497 TFLOPS

Radeon R9 280X2

VS

Radeon HD 3870 AGP

Graphics Card

Unknown

Release Date

Unknown

Volcanic Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

AGP 8x

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

1126 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR4

384bit

Memory Bus

256bit

288.0GB/s

Bandwidth

72.06GB/s

Render Config

32

Compute Units

4

-

2048

Shading Units

320

128

TMUs

16

32

ROPs

16

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

256 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

12.43 GPixel/s

128.0 GTexel/s

Texture Rate

12.43 GTexel/s

-

4.096 TFLOPS

FP32 (float)

497.3 GFLOPS

1024 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

375W

TDP

106W

750 W

Suggested PSU

300 W

6x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

3x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Tahiti

GPU Name

RV670

Tahiti XTL (215-0821065)

GPU Variant

RV670 XT (215-0708005)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.666 billion

352 mm²

Die Size

192 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

Related GPU Comparisons

1

AMD Radeon R9 280X2 vs NVIDIA GeForce RTX 5070

2

AMD Radeon R9 280X2 vs Intel Arc Pro A60

3

AMD Radeon R9 280X2 vs ATI Radeon HD 2900 GT

4

AMD Radeon R9 280X2 vs NVIDIA GeForce GTX TITAN BLACK

5

AMD Radeon R9 280X2 vs NVIDIA Quadro FX 4000 SDI

6

AMD Radeon R9 280X2 vs Intel Arc A770

7

AMD Radeon R9 280X2 vs AMD Radeon R5 240 OEM

8

AMD Radeon R9 280X2 vs ATI FirePro 2270

9

AMD Radeon R9 280X2 vs AMD Radeon HD 8870 OEM

10

AMD Radeon R9 280X2 vs NVIDIA GeForce RTX 4080 16 GB

Related News

1

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

2

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

3

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

4

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

5

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

6

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

7

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

8

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

9

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

10

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game