AMD Radeon RX 6900 XT vs NVIDIA GeForce 8600 GT

VS

AMD Radeon RX 6900 XT

NVIDIA GeForce 8600 GT

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 512MB VRAM GeForce 8600 GT 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 13 years and 6 months late

Boost Clock2250MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (512.0GB/s vs 22.40GB/s)

5088 additional rendering cores

NVIDIA GeForce 8600 GT 's Advantages

Lower TDP (47W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XT +30215%

23.04 TFLOPS

GeForce 8600 GT

0.076 TFLOPS

Radeon RX 6900 XT

VS

GeForce 8600 GT

Graphics Card

Oct 2020

Release Date

Apr 2007

Navi II

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2250 MHz

Boost Clock

-

2000 MHz

Memory Clock

700 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

128bit

512.0GB/s

Bandwidth

22.40GB/s

Render Config

80

Compute Units

-

SM Count

4

5120

Shading Units

32

320

TMUs

16

128

ROPs

8

-

80

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

32 KB

128 MB

L3 Cache

-

Theoretical Performance

288.0 GPixel/s

Pixel Rate

4.320 GPixel/s

720.0 GTexel/s

Texture Rate

8.640 GTexel/s

46.08 TFLOPS

FP16 (half)

-

23.04 TFLOPS

FP32 (float)

76.16 GFLOPS

1440 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

47W

700 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

G84

Navi 21 XTX (215-121000167)

GPU Variant

G84-303-A2

RDNA 2.0

Architecture

Tesla

TSMC

Foundry

TSMC

7 nm

Process Size

80 nm

26.8 billion

Transistors

0.289 billion

520 mm²

Die Size

169 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

2.1

OpenCL

1.1

1.3

Vulkan

N/A

-

CUDA

1.1

6.5

Shader Model

4.0

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