AMD Radeon Sky 900 vs AMD Radeon RX 7800 XT

VS

AMD Radeon Sky 900 AMD Radeon RX 7800 XT

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 16GB VRAM Radeon RX 7800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 10 years and 5 months late

Boost Clock has increased by 156% (2430MHz vs 950MHz)

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (624.1GB/s vs 240.0GB/s)

2048 additional rendering cores

Lower TDP (263W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900

3.405 TFLOPS

Radeon RX 7800 XT +996%

37.32 TFLOPS

Radeon Sky 900

VS

Radeon RX 7800 XT

Graphics Card

Mar 2013

Release Date

Aug 2023

Radeon Sky

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

825 MHz

Base Clock

1295 MHz

950 MHz

Boost Clock

2430 MHz

1250 MHz

Memory Clock

2438 MHz

Memory

3GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

624.1GB/s

Render Config

-

SM Count

-

28

Compute Units

60

1792

Shading Units

3840

112

TMUs

240

32

ROPs

96

-

Tensor Cores

-

RT Cores

60

16 KB (per CU)

L1 Cache

128 KB per Array

768 KB

L2 Cache

4 MB

Theoretical Performance

30.40 GPixel/s

Pixel Rate

233.3 GPixel/s

106.4 GTexel/s

Texture Rate

583.2 GTexel/s

-

FP16 (half)

74.65 TFLOPS

3.405 TFLOPS

FP32 (float)

37.32 TFLOPS

851.2 GFLOPS

FP64 (double)

1166 GFLOPS

Graphics Processor

Tahiti

GPU Name

Navi 32

Orthrus

GPU Variant

Navi 32 XT (215-180000006)

GCN 1.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

5 nm

4.313 billion

Transistors

28.1 billion

352 mm²

Die Size

346 mm²

Board Design

300W

TDP

263W

700 W

Suggested PSU

600 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1a 3x DisplayPort 2.1

2x 8-pin

Power Connectors

2x 8-pin

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.2

1.2

Vulkan

1.3

-

CUDA

-

5.1

Shader Model

6.7

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