ATI Radeon HD 2900 XTX vs AMD Radeon R9 390 X2

VS

ATI Radeon HD 2900 XTX

AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 8GB VRAM Radeon R9 390 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XTX 's Advantages

Lower TDP (240W vs 580W)

AMD Radeon R9 390 X2 's Advantages

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (345.6GB/s vs 106.0GB/s)

2240 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon R9 390 X2 +975%

5.12 TFLOPS

Radeon HD 2900 XTX

VS

Radeon R9 390 X2

Graphics Card

Unknown

Release Date

Sep 2015

Radeon R600

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

828 MHz

Memory Clock

1350 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

512bit

106.0GB/s

Bandwidth

345.6GB/s

Render Config

4

Compute Units

40

-

320

Shading Units

2560

16

TMUs

160

16

ROPs

64

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

64.00 GPixel/s

11.89 GTexel/s

Texture Rate

160.0 GTexel/s

-

475.5 GFLOPS

FP32 (float)

5.120 TFLOPS

-

FP64 (double)

640.0 GFLOPS

Board Design

240W

TDP

580W

550 W

Suggested PSU

950 W

2x DVI 1x S-Video

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

2x 6-pin

Power Connectors

4x 8-pin

Graphics Processor

R600

GPU Name

Grenada

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Grenada PRO (215-0880030)

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

6.2 billion

420 mm²

Die Size

438 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (12_0)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

2.0

N/A

Vulkan

1.2

-

4.0

Shader Model

6.3

Related GPU Comparisons

1

ATI Radeon HD 2900 XTX vs AMD Radeon PRO W7500

2

ATI Radeon HD 2900 XTX vs ATI Radeon HD 3850

3

ATI Radeon HD 2900 XTX vs ATI Radeon HD 2900 GT

4

ATI Radeon HD 2900 XTX vs AMD Radeon RX 6800 XT

5

ATI Radeon HD 2900 XTX vs NVIDIA GeForce RTX 4070 Ti SUPER

6

ATI Radeon HD 2900 XTX vs AMD Radeon R7 430 OEM

7

ATI Radeon HD 2900 XTX vs AMD Radeon HD 7950 Mac Edition

8

ATI Radeon HD 2900 XTX vs NVIDIA GeForce GTX 1060 6 GB 9Gbps

9

ATI Radeon HD 2900 XTX vs AMD Radeon RX 480

10

ATI Radeon HD 2900 XTX vs AMD Radeon HD 6490

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