AMD Radeon RX 6400 vs ATI Radeon HD 2900 XTX

VS

AMD Radeon RX 6400

ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 512MB VRAM Radeon HD 2900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Boost Clock2321MHz

More VRAM (4GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 106.0GB/s)

448 additional rendering cores

Lower TDP (53W vs 240W)

Score

Benchmark

FP32 (float)

Radeon RX 6400 +648%

3.565 TFLOPS

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon RX 6400

VS

Radeon HD 2900 XTX

Graphics Card

Jan 2022

Release Date

Unknown

Navi II

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 1.0 x16

Clock Speeds

1923 MHz

Base Clock

-

2321 MHz

Boost Clock

-

2000 MHz

Memory Clock

828 MHz

Memory

4GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

64bit

Memory Bus

512bit

128.0GB/s

Bandwidth

106.0GB/s

Render Config

12

Compute Units

4

-

768

Shading Units

320

48

TMUs

16

32

ROPs

16

-

12

RT Cores

-

128 KB per Array

L1 Cache

-

1024 KB

L2 Cache

256 KB

16 MB

L3 Cache

-

Theoretical Performance

74.27 GPixel/s

Pixel Rate

11.89 GPixel/s

111.4 GTexel/s

Texture Rate

11.89 GTexel/s

7.130 TFLOPS

FP16 (half)

-

3.565 TFLOPS

FP32 (float)

475.5 GFLOPS

222.8 GFLOPS

FP64 (double)

-

Board Design

53W

TDP

240W

250 W

Suggested PSU

550 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

2x DVI 1x S-Video

None

Power Connectors

2x 6-pin

Graphics Processor

Navi 24

GPU Name

R600

Navi 24 XL (215-135000046)

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

6 nm

Process Size

80 nm

5.4 billion

Transistors

0.72 billion

107 mm²

Die Size

420 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

4.0

Related GPU Comparisons

1

AMD Radeon RX 6400 vs NVIDIA GeForce GTX 690

2

AMD Radeon RX 6400 vs AMD Radeon 550X

3

AMD Radeon RX 6400 vs NVIDIA GeForce GT 520 PCI

4

AMD Radeon RX 6400 vs AMD Radeon HD 8970 OEM

5

AMD Radeon RX 6400 vs AMD Radeon RX 455 OEM

6

AMD Radeon RX 6400 vs ATI Radeon HD 2900 XTX

7

AMD Radeon RX 6400 vs ATI Radeon HD 4850

8

AMD Radeon RX 6400 vs ATI Radeon HD 4570

9

AMD Radeon RX 6400 vs AMD Radeon RX 570

10

AMD Radeon RX 6400 vs NVIDIA GeForce GTX 1080 Ti 10 GB

Related News

1

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

2

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

3

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

4

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

5

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

6

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

7

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

8

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU

9

Cyberpunk 2077 Update 2.2: Intel Arrow Lake Gaming Performance Soars by 33%!

10

Intel Finally Achieves Frame Generation! 'F1 24' Becomes the First XeSS 2 Game