AMD Radeon 550X 640SP vs ATI Radeon HD 3850

VS

AMD Radeon 550X 640SP

ATI Radeon HD 3850

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 640SP 's Advantages

Released 10 years and 5 months late

Boost Clock1071MHz

More VRAM (4GB vs 512GB)

320 additional rendering cores

Lower TDP (50W vs 75W)

ATI Radeon HD 3850 's Advantages

Larger VRAM bandwidth (53.12GB/s vs 48.00GB/s)

Score

Benchmark

FP32 (float)

Radeon 550X 640SP +220%

1.371 TFLOPS

Radeon HD 3850

0.428 TFLOPS

Radeon 550X 640SP

VS

Radeon HD 3850

Graphics Card

Apr 2018

Release Date

Nov 2007

Polaris

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

830 MHz

Memory

4GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

53.12GB/s

Render Config

10

Compute Units

4

-

640

Shading Units

320

40

TMUs

16

ROPs

16

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

256 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

10.69 GPixel/s

42.84 GTexel/s

Texture Rate

10.69 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

427.5 GFLOPS

85.68 GFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

50W

TDP

75W

250 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

RV670

Lexa PRO (215-0904018)

GPU Variant

RV670 PRO (215-0708003)

GCN 4.0

Architecture

TeraScale

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

55 nm

2.2 billion

Transistors

0.666 billion

103 mm²

Die Size

192 mm²

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.2

Vulkan

N/A

-

6.4

Shader Model

4.1

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