AMD Radeon RX 6900 XTX vs NVIDIA GeForce 6800 GS

VS

AMD Radeon RX 6900 XTX

NVIDIA GeForce 6800 GS

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 256MB VRAM GeForce 6800 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock2435MHz

More VRAM (16GB vs 256GB)

Larger VRAM bandwidth (576.0GB/s vs 32.00GB/s)

5120 additional rendering cores

Score

Radeon RX 6900 XTX

VS

GeForce 6800 GS

Graphics Card

Unknown

Release Date

Nov 2005

Navi II

Generation

GeForce 6 PCIe

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

500 MHz

Memory

16GB

Memory Size

256MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

256bit

576.0GB/s

Bandwidth

32.00GB/s

Render Config

80

Compute Units

-

5120

Shading Units

-

320

TMUs

12

128

ROPs

8

-

80

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

-

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

3.400 GPixel/s

779.2 GTexel/s

Texture Rate

5.100 GTexel/s

49.87 TFLOPS

FP16 (half)

-

24.93 TFLOPS

FP32 (float)

-

1.558 TFLOPS

FP64 (double)

-

Board Design

330W

TDP

Unknown

700 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 21

GPU Name

NV41

Navi 21 XTXH (215-121000247)

GPU Variant

-

RDNA 2.0

Architecture

Curie

TSMC

Foundry

TSMC

7 nm

Process Size

130 nm

26.8 billion

Transistors

0.19 billion

520 mm²

Die Size

225 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

9.0c (9_3)

4.6

OpenGL

2.0 (full) 2.1 (partial)

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

3.0

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