AMD Radeon RX 7900 XT vs AMD Radeon R9 280

VS

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 3GB VRAM Radeon R9 280 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 8 years and 8 months late

Boost Clock has increased by 157% (2394MHz vs 933MHz)

More VRAM (20GB vs 3GB)

Larger VRAM bandwidth (800.0GB/s vs 240.0GB/s)

3584 additional rendering cores

AMD Radeon R9 280 's Advantages

Lower TDP (200W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT +1439%

51.48 TFLOPS

Radeon R9 280

3.344 TFLOPS

3DMark Time Spy

Radeon RX 7900 XT +1230%

26739

Radeon R9 280

2009

Radeon RX 7900 XT

VS

Radeon R9 280

Graphics Card

Nov 2022

Release Date

Mar 2014

Navi III

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1387 MHz

Base Clock

827 MHz

2394 MHz

Boost Clock

933 MHz

2500 MHz

Memory Clock

1250 MHz

Memory

20GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

320bit

Memory Bus

384bit

800.0GB/s

Bandwidth

240.0GB/s

Render Config

-

SM Count

-

84

Compute Units

28

5376

Shading Units

1792

336

TMUs

112

192

ROPs

32

-

Tensor Cores

-

84

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

768 KB

Theoretical Performance

459.6 GPixel/s

Pixel Rate

29.86 GPixel/s

804.4 GTexel/s

Texture Rate

104.5 GTexel/s

103.0 TFLOPS

FP16 (half)

-

51.48 TFLOPS

FP32 (float)

3.344 TFLOPS

1.609 TFLOPS

FP64 (double)

836.0 GFLOPS

Graphics Processor

Navi 31

GPU Name

Tahiti

Navi 31 XT (215-145000156)

GPU Variant

Tahiti PRO3 (215-0821330)

RDNA 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

57.7 billion

Transistors

4.313 billion

529 mm²

Die Size

352 mm²

Board Design

300W

TDP

200W

700 W

Suggested PSU

550 W

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

Outputs

1x DVI 2x HDMI 1.4a 1x DisplayPort 1.2

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

CUDA

-

6.7

Shader Model

5.1

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