ATI Radeon HD 2900 XTX vs AMD Radeon RX 550

VS

ATI Radeon HD 2900 XTX AMD Radeon RX 550

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 2GB VRAM Radeon RX 550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550 's Advantages

Boost Clock1183MHz

Larger VRAM bandwidth (112.0GB/s vs 106.0GB/s)

192 additional rendering cores

Lower TDP (50W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon RX 550 +154%

1.211 TFLOPS

Radeon HD 2900 XTX

VS

Radeon RX 550

Graphics Card

Unknown

Release Date

Apr 2017

Radeon R600

Generation

Polaris

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1100 MHz

-

Boost Clock

1183 MHz

828 MHz

Memory Clock

1750 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

112.0GB/s

Render Config

-

SM Count

-

4

Compute Units

8

320

Shading Units

512

16

TMUs

32

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

Theoretical Performance

11.89 GPixel/s

Pixel Rate

18.93 GPixel/s

11.89 GTexel/s

Texture Rate

37.86 GTexel/s

-

FP16 (half)

1211 GFLOPS

475.5 GFLOPS

FP32 (float)

1211 GFLOPS

-

FP64 (double)

75.71 GFLOPS

Graphics Processor

R600

GPU Name

Lexa

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Lexa PRO (215-0904018)

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

80 nm

Process Size

14 nm

0.72 billion

Transistors

2.2 billion

420 mm²

Die Size

103 mm²

Board Design

240W

TDP

50W

550 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

None

Graphics Features

10.0 (10_0)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.1

N/A

Vulkan

1.2

-

CUDA

-

4.0

Shader Model

6.4

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