AMD Radeon RX 7900 XT vs ATI Radeon X1550

VS

AMD Radeon RX 7900 XT

ATI Radeon X1550

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 256MB VRAM Radeon X1550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Released 15 years and 10 months late

Boost Clock2394MHz

More VRAM (20GB vs 256GB)

Larger VRAM bandwidth (800.0GB/s vs 12.80GB/s)

5376 additional rendering cores

ATI Radeon X1550 's Advantages

Lower TDP (27W vs 300W)

Score

Radeon RX 7900 XT

VS

Radeon X1550

Graphics Card

Nov 2022

Release Date

Jan 2007

Navi III

Generation

Radeon R500 PCIe

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1387 MHz

Base Clock

-

2394 MHz

Boost Clock

-

2500 MHz

Memory Clock

400 MHz

Memory

20GB

Memory Size

256MB

GDDR6

Memory Type

DDR2

320bit

Memory Bus

128bit

800.0GB/s

Bandwidth

12.80GB/s

Render Config

84

Compute Units

-

5376

Shading Units

-

336

TMUs

4

192

ROPs

4

-

84

RT Cores

-

256 KB per Array

L1 Cache

-

6 MB

L2 Cache

-

80 MB

L3 Cache

-

Theoretical Performance

459.6 GPixel/s

Pixel Rate

2.200 GPixel/s

804.4 GTexel/s

Texture Rate

2.200 GTexel/s

103.0 TFLOPS

FP16 (half)

-

51.48 TFLOPS

FP32 (float)

-

1.609 TFLOPS

FP64 (double)

-

Board Design

300W

TDP

27W

700 W

Suggested PSU

200 W

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 31

GPU Name

RV516

Navi 31 XT (215-145000156)

GPU Variant

-

RDNA 3.0

Architecture

R500

TSMC

Foundry

UMC

5 nm

Process Size

80 nm

57.7 billion

Transistors

0.107 billion

529 mm²

Die Size

100 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

9.0c (9_3)

4.6

OpenGL

2.1

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

3.0

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