AMD Radeon RX 6800 XT vs AMD Radeon R9 290X

VS

AMD Radeon RX 6800 XT AMD Radeon R9 290X

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 XT and 4GB VRAM Radeon R9 290X 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 7 years late

Boost Clock2250MHz

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (512.0GB/s vs 320.0GB/s)

1792 additional rendering cores

AMD Radeon R9 290X 's Advantages

Lower TDP (290W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 XT +268%

20.74 TFLOPS

Radeon R9 290X

5.632 TFLOPS

3DMark Time Spy

Radeon RX 6800 XT +393%

19415

Radeon R9 290X

3934

Radeon RX 6800 XT

VS

Radeon R9 290X

Graphics Card

Oct 2020

Release Date

Oct 2013

Navi II

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2250 MHz

Boost Clock

-

2000 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

512bit

512.0GB/s

Bandwidth

320.0GB/s

Render Config

-

SM Count

-

72

Compute Units

44

4608

Shading Units

2816

288

TMUs

176

128

ROPs

64

-

Tensor Cores

-

72

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

1024 KB

Theoretical Performance

288.0 GPixel/s

Pixel Rate

64.00 GPixel/s

648.0 GTexel/s

Texture Rate

176.0 GTexel/s

41.47 TFLOPS

FP16 (half)

-

20.74 TFLOPS

FP32 (float)

5.632 TFLOPS

1296 GFLOPS

FP64 (double)

704.0 GFLOPS

Graphics Processor

Navi 21

GPU Name

Hawaii

Navi 21 XT (215-121000177)

GPU Variant

Hawaii XT (215-0852000)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

6.2 billion

520 mm²

Die Size

438 mm²

Board Design

300W

TDP

290W

700 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x 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 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

CUDA

-

6.5

Shader Model

6.3

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