AMD Radeon RX 6900 XT vs AMD Radeon R9 295X2

VS

AMD Radeon RX 6900 XT

AMD Radeon R9 295X2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 4GB VRAM Radeon R9 295X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XT 's Advantages

Released 6 years and 6 months late

Boost Clock2250MHz

More VRAM (16GB vs 4GB)

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

2304 additional rendering cores

Lower TDP (300W vs 500W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT +301%

23.04 TFLOPS

Radeon R9 295X2

5.733 TFLOPS

Radeon RX 6900 XT

VS

Radeon R9 295X2

Graphics Card

Oct 2020

Release Date

Apr 2014

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

80

Compute Units

44

-

5120

Shading Units

2816

320

TMUs

176

128

ROPs

64

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

1024 KB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

65.15 GPixel/s

720.0 GTexel/s

Texture Rate

179.2 GTexel/s

46.08 TFLOPS

FP16 (half)

-

23.04 TFLOPS

FP32 (float)

5.733 TFLOPS

1440 GFLOPS

FP64 (double)

716.7 GFLOPS

Board Design

300W

TDP

500W

700 W

Suggested PSU

900 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Navi 21

GPU Name

Vesuvius

Navi 21 XTX (215-121000167)

GPU Variant

Vesuvius XT (215-0852022)

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

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

-

6.5

Shader Model

6.3

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