AMD Radeon R9 290X2 vs AMD Radeon RX 6800 XT

VS

AMD Radeon R9 290X2

AMD Radeon RX 6800 XT

We compared two Desktop platform GPUs: 4GB VRAM Radeon R9 290X2 and 16GB VRAM Radeon RX 6800 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Released 6 years and 4 months late

Boost Clock2250MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (512.0GB/s vs 345.6GB/s)

1792 additional rendering cores

Lower TDP (300W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 290X2

5.632 TFLOPS

Radeon RX 6800 XT +268%

20.74 TFLOPS

Radeon R9 290X2

VS

Radeon RX 6800 XT

Graphics Card

Jun 2014

Release Date

Oct 2020

Volcanic Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1825 MHz

-

Boost Clock

2250 MHz

1350 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

256bit

345.6GB/s

Bandwidth

512.0GB/s

Render Config

44

Compute Units

72

-

2816

Shading Units

4608

176

TMUs

288

64

ROPs

128

-

RT Cores

72

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

288.0 GPixel/s

176.0 GTexel/s

Texture Rate

648.0 GTexel/s

-

FP16 (half)

41.47 TFLOPS

5.632 TFLOPS

FP32 (float)

20.74 TFLOPS

704.0 GFLOPS

FP64 (double)

1296 GFLOPS

Board Design

580W

TDP

300W

950 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

4x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Hawaii

GPU Name

Navi 21

Hawaii XT (215-0852000)

GPU Variant

Navi 21 XT (215-121000177)

GCN 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

7 nm

6.2 billion

Transistors

26.8 billion

438 mm²

Die Size

520 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.1

1.2

Vulkan

1.3

-

6.3

Shader Model

6.5

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