AMD Radeon RX 7990 XTX vs AMD Radeon RX 7900 XTX

VS

AMD Radeon RX 7990 XTX AMD Radeon RX 7900 XTX

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

Main Differences

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 44% (3599MHz vs 2498MHz)

Larger VRAM bandwidth (1152GB/s vs 960.0GB/s)

AMD Radeon RX 7900 XTX 's Advantages

Lower TDP (355W vs 405W)

Score

Benchmark

FP32 (float)

Radeon RX 7990 XTX +44%

88.45 TFLOPS

Radeon RX 7900 XTX

61.39 TFLOPS

Radeon RX 7990 XTX

VS

Radeon RX 7900 XTX

Graphics Card

Unknown

Release Date

Nov 2022

Navi III

Generation

Navi III

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2500 MHz

Base Clock

1929 MHz

3599 MHz

Boost Clock

2498 MHz

3000 MHz

Memory Clock

2500 MHz

Memory

24GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6

384bit

Memory Bus

384bit

1152GB/s

Bandwidth

960.0GB/s

Render Config

-

SM Count

-

96

Compute Units

96

6144

Shading Units

6144

384

TMUs

384

192

ROPs

192

-

Tensor Cores

-

96

RT Cores

96

256 KB per Array

L1 Cache

256 KB per Array

6 MB

L2 Cache

6 MB

Theoretical Performance

691.0 GPixel/s

Pixel Rate

479.6 GPixel/s

1382 GTexel/s

Texture Rate

959.2 GTexel/s

176.9 TFLOPS

FP16 (half)

122.8 TFLOPS

88.45 TFLOPS

FP32 (float)

61.39 TFLOPS

2.764 TFLOPS

FP64 (double)

1.918 TFLOPS

Graphics Processor

Navi 31

GPU Name

Navi 31

Navi 31 XTX+

GPU Variant

Navi 31 XTX (215-145000146)

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

Board Design

405W

TDP

355W

800 W

Suggested PSU

750 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

3x 8-pin

Power Connectors

2x 8-pin

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

-

CUDA

-

6.7

Shader Model

6.7

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