ATI Radeon HD 2900 XTX vs AMD Radeon RX 550X 640SP

VS

ATI Radeon HD 2900 XTX

AMD Radeon RX 550X 640SP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 2GB VRAM Radeon RX 550X 640SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XTX 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 96.00GB/s)

AMD Radeon RX 550X 640SP 's Advantages

Boost Clock1071MHz

More VRAM (2GB vs 512GB)

320 additional rendering cores

Lower TDP (60W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon RX 550X 640SP +188%

1.371 TFLOPS

Radeon HD 2900 XTX

VS

Radeon RX 550X 640SP

Graphics Card

Unknown

Release Date

Apr 2018

Radeon R600

Generation

Polaris

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

-

Base Clock

1019 MHz

-

Boost Clock

1071 MHz

828 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

128bit

106.0GB/s

Bandwidth

96.00GB/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

1024 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

17.14 GPixel/s

11.89 GTexel/s

Texture Rate

42.84 GTexel/s

-

FP16 (half)

1371 GFLOPS

475.5 GFLOPS

FP32 (float)

1371 GFLOPS

-

FP64 (double)

85.68 GFLOPS

Board Design

240W

TDP

60W

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 Processor

R600

GPU Name

Baffin

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Baffin LE

TeraScale

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

80 nm

Process Size

14 nm

0.72 billion

Transistors

3 billion

420 mm²

Die Size

123 mm²

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

-

4.0

Shader Model

6.4

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