AMD Radeon RX 7900 XT vs AMD Radeon RX Vega Nano

VS

AMD Radeon RX 7900 XT

AMD Radeon RX Vega Nano

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 8GB VRAM Radeon RX Vega Nano to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Boost Clock has increased by 55% (2394MHz vs 1546MHz)

More VRAM (20GB vs 8GB)

Larger VRAM bandwidth (800.0GB/s vs 409.6GB/s)

1280 additional rendering cores

AMD Radeon RX Vega Nano 's Advantages

Lower TDP (175W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT +306%

51.48 TFLOPS

Radeon RX Vega Nano

12.66 TFLOPS

Radeon RX 7900 XT

VS

Radeon RX Vega Nano

Graphics Card

Nov 2022

Release Date

Unknown

Navi III

Generation

Vega

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1387 MHz

Base Clock

1247 MHz

2394 MHz

Boost Clock

1546 MHz

2500 MHz

Memory Clock

800 MHz

Memory

20GB

Memory Size

8GB

GDDR6

Memory Type

HBM2

320bit

Memory Bus

2048bit

800.0GB/s

Bandwidth

409.6GB/s

Render Config

84

Compute Units

64

-

5376

Shading Units

4096

336

TMUs

256

192

ROPs

64

-

84

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

4 MB

80 MB

L3 Cache

-

Theoretical Performance

459.6 GPixel/s

Pixel Rate

98.94 GPixel/s

804.4 GTexel/s

Texture Rate

395.8 GTexel/s

103.0 TFLOPS

FP16 (half)

-

51.48 TFLOPS

FP32 (float)

12.66 TFLOPS

1.609 TFLOPS

FP64 (double)

791.6 GFLOPS

Board Design

300W

TDP

175W

700 W

Suggested PSU

450 W

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

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

Navi 31

GPU Name

Vega 10

Navi 31 XT (215-145000156)

GPU Variant

Vega 10 XT (215-0894200)

RDNA 3.0

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

5 nm

Process Size

14 nm

57.7 billion

Transistors

12.5 billion

529 mm²

Die Size

495 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.2

-

6.7

Shader Model

6.4

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