AMD Radeon RX 7900 XT vs AMD Radeon RX 7990 XTX

VS

AMD Radeon RX 7900 XT

AMD Radeon RX 7990 XTX

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 24GB VRAM Radeon RX 7990 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Lower TDP (300W vs 405W)

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 50% (3599MHz vs 2394MHz)

More VRAM (24GB vs 20GB)

Larger VRAM bandwidth (1152GB/s vs 800.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT

51.48 TFLOPS

Radeon RX 7990 XTX +71%

88.45 TFLOPS

Radeon RX 7900 XT

VS

Radeon RX 7990 XTX

Graphics Card

Nov 2022

Release Date

Unknown

Navi III

Generation

Navi III

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1387 MHz

Base Clock

2500 MHz

2394 MHz

Boost Clock

3599 MHz

2500 MHz

Memory Clock

3000 MHz

Memory

20GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6

320bit

Memory Bus

384bit

800.0GB/s

Bandwidth

1152GB/s

Render Config

84

Compute Units

96

-

5376

Shading Units

6144

336

TMUs

384

192

ROPs

192

-

84

RT Cores

96

256 KB per Array

L1 Cache

256 KB per Array

6 MB

L2 Cache

6 MB

80 MB

L3 Cache

192 MB

Theoretical Performance

459.6 GPixel/s

Pixel Rate

691.0 GPixel/s

804.4 GTexel/s

Texture Rate

1382 GTexel/s

103.0 TFLOPS

FP16 (half)

176.9 TFLOPS

51.48 TFLOPS

FP32 (float)

88.45 TFLOPS

1.609 TFLOPS

FP64 (double)

2.764 TFLOPS

Board Design

300W

TDP

405W

700 W

Suggested PSU

800 W

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

Outputs

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

2x 8-pin

Power Connectors

3x 8-pin

Graphics Processor

Navi 31

GPU Name

Navi 31

Navi 31 XT (215-145000156)

GPU Variant

Navi 31 XTX+

RDNA 3.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

57.7 billion

Transistors

57.7 billion

529 mm²

Die Size

529 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

2.2

1.3

Vulkan

1.3

-

6.7

Shader Model

6.7

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