GPU Comparison

A

AMD

RADEON

AMD Steam Machine GPU

CORE STATE Navi 33

VRAM 8 GB

CLOCK SPEED 2450 MHz

TDP 110 W

BUS WIDTH 128 bit

ARCHITECTURE RDNA 3.0

nm

PROCESS 6 nm

LAUNCH DATE 2026

VS

NVIDIA

GEFORCE

GeForce RTX 5090 Mobile

CORE STATE GB203

VRAM 24 GB

CLOCK SPEED 1515 MHz

TDP 95 W

BUS WIDTH 256 bit

ARCHITECTURE Blackwell 2.0

nm

PROCESS 5 nm

LAUNCH DATE 2025

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

N/A

5,871

geekbench_opencl

N/A

201,834

geekbench_vulkan

N/A

198,405

passmark_directx_10

N/A

183

passmark_directx_11

N/A

269

passmark_directx_12

N/A

138

passmark_directx_9

N/A

324

passmark_g2d

N/A

1,057

passmark_g3d

N/A

30,034

passmark_gpu_compute

N/A

13,401

DETAILED SPECIFICATIONS

SPECIFICATION

Steam Machine GPU

RTX 5090 Mobile

Core Specs

Shading Units

1,792

10,496 +485.7%

Shaders

1,792

10,496 +485.7%

TMUs

112

328 +192.9%

ROPs

64

112 +75.0%

Compute Units

28

—

SM Count

—

82

Clocks

Base Clock

1720 MHz

990 MHz

Boost Clock

2450 MHz

1515 MHz

Game Clock

2250 MHz

—

Memory Clock

2250 MHz 18 Gbps effective

1750 MHz 28 Gbps effective

Memory

Memory Size

8 GB

24 GB

VRAM (MB)

8,192

24,576 +200.0%

Memory Type

GDDR6

GDDR7

Memory Bus

128 bit

256 bit

Bandwidth

288.0 GB/s

896.0 GB/s

Cache

L1 Cache

128 KB per Array

128 KB (per SM)

L2 Cache

2 MB

64 MB

L3 Cache

32 MB

—

Performance

Pixel Rate

156.8 GPixel/s

169.7 GPixel/s

Texture Rate

274.4 GTexel/s

496.9 GTexel/s

FP32 (TFLOPS)

17.56 TFLOPS

31.80 TFLOPS

FP64 (TFLOPS)

548.8 GFLOPS (1:32)

496.9 GFLOPS (1:64)

FP16 (TFLOPS)

35.12 TFLOPS (2:1)

31.80 TFLOPS (1:1)

AI/RT

RT Cores

28

82 +192.9%

Tensor Cores

—

328

Matrix Cores

56

—

Power

TDP

110 W

95 W

TDP (W)

110

95 -13.6%

Power Connectors

None

None

Architecture

Architecture

RDNA 3.0

Blackwell 2.0

GPU Name

Navi 33

GB203

Codename

Hotpink Bonefish

—

Generation

Console GPU (Valve)

GeForce 50 Mobile

Process Size

6 nm

5 nm

Transistors

13,300 million

45,600 million

Die Size

204 mm²

378 mm²

Foundry

TSMC

TSMC

Density

65.2M / mm²

120.6M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.4

1.4

OpenCL

2.2

3.0

CUDA

—

12.0

Shader Model

6.8

6.8

Physical

Slot Width

—

IGP

Length

156 mm 6.1 inches

—

Height

152 mm 6 inches

—

Outputs

No outputs

Portable Device Dependent

Bus Interface

—

PCIe 5.0 x16

Other

Production

Active

Active

Predecessor

—

GeForce 40 Mobile

View Steam Machine GPU Details View GeForce RTX 5090 Mobile Details