AMD Radeon RX 7900 XT vs ATI Radeon HD 3850

VS

AMD Radeon RX 7900 XT

ATI Radeon HD 3850

We compared two Desktop platform GPUs: 20GB VRAM Radeon RX 7900 XT and 512MB VRAM Radeon HD 3850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XT 's Advantages

Released 15 years late

Boost Clock2394MHz

More VRAM (20GB vs 512GB)

Larger VRAM bandwidth (800.0GB/s vs 53.12GB/s)

5056 additional rendering cores

ATI Radeon HD 3850 's Advantages

Lower TDP (75W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 XT +11928%

51.48 TFLOPS

Radeon HD 3850

0.428 TFLOPS

Radeon RX 7900 XT

VS

Radeon HD 3850

Graphics Card

Nov 2022

Release Date

Nov 2007

Navi III

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1387 MHz

Base Clock

-

2394 MHz

Boost Clock

-

2500 MHz

Memory Clock

830 MHz

Memory

20GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

320bit

Memory Bus

256bit

800.0GB/s

Bandwidth

53.12GB/s

Render Config

84

Compute Units

4

-

5376

Shading Units

320

336

TMUs

16

192

ROPs

16

-

84

RT Cores

-

256 KB per Array

L1 Cache

-

6 MB

L2 Cache

256 KB

80 MB

L3 Cache

-

Theoretical Performance

459.6 GPixel/s

Pixel Rate

10.69 GPixel/s

804.4 GTexel/s

Texture Rate

10.69 GTexel/s

103.0 TFLOPS

FP16 (half)

-

51.48 TFLOPS

FP32 (float)

427.5 GFLOPS

1.609 TFLOPS

FP64 (double)

85.50 GFLOPS

Board Design

300W

TDP

75W

700 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 31

GPU Name

RV670

Navi 31 XT (215-145000156)

GPU Variant

RV670 PRO (215-0708003)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

55 nm

57.7 billion

Transistors

0.666 billion

529 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

6.7

Shader Model

4.1

Related GPU Comparisons

1

AMD Radeon RX 7900 XT vs AMD Radeon HD 8470 OEM

2

AMD Radeon RX 7900 XT vs AMD Radeon RX 580X

3

AMD Radeon RX 7900 XT vs NVIDIA GeForce GT 620 OEM

4

AMD Radeon RX 7900 XT vs ATI FirePro V7900

5

AMD Radeon RX 7900 XT vs NVIDIA GeForce GTX 1650 TU106

6

AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 3080

7

AMD Radeon RX 7900 XT vs AMD Radeon RX 580 2048SP

8

AMD Radeon RX 7900 XT vs AMD Radeon RX 7600

9

AMD Radeon RX 7900 XT vs ATI Radeon HD 2600 XT AGP

10

AMD Radeon RX 7900 XT vs AMD FirePro S9100

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