ATI Radeon HD 3870 AGP vs AMD Radeon 550X 640SP

VS

ATI Radeon HD 3870 AGP

AMD Radeon 550X 640SP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 AGP and 4GB VRAM Radeon 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 AGP 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 48.00GB/s)

AMD Radeon 550X 640SP 's Advantages

Boost Clock1071MHz

More VRAM (4GB vs 512GB)

320 additional rendering cores

Lower TDP (50W vs 106W)

Score

Benchmark

FP32 (float)

Radeon HD 3870 AGP

0.497 TFLOPS

Radeon 550X 640SP +175%

1.371 TFLOPS

Radeon HD 3870 AGP

VS

Radeon 550X 640SP

Graphics Card

Unknown

Release Date

Apr 2018

Radeon R600

Generation

Polaris

Desktop

Type

Desktop

AGP 8x

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1019 MHz

-

Boost Clock

1071 MHz

1126 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

4GB

GDDR4

Memory Type

GDDR5

256bit

Memory Bus

64bit

72.06GB/s

Bandwidth

48.00GB/s

Render Config

4

Compute Units

10

-

320

Shading Units

640

16

TMUs

40

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

17.14 GPixel/s

12.43 GTexel/s

Texture Rate

42.84 GTexel/s

-

FP16 (half)

1371 GFLOPS

497.3 GFLOPS

FP32 (float)

1371 GFLOPS

99.46 GFLOPS

FP64 (double)

85.68 GFLOPS

Board Design

106W

TDP

50W

300 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

1x 8-pin

Power Connectors

None

Graphics Processor

RV670

GPU Name

Lexa

RV670 XT (215-0708005)

GPU Variant

Lexa PRO (215-0904018)

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

55 nm

Process Size

14 nm

0.666 billion

Transistors

2.2 billion

192 mm²

Die Size

103 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.2

-

4.1

Shader Model

6.4

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