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

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

-

Base Clock

-

Boost Clock

-

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

-

SM Count

-

4

Compute Units

40

320

Shading Units

2560

16

TMUs

160

16

ROPs

64

-

Tensor Cores

-

RT Cores

-

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

-

FP16 (half)

-

475.5 GFLOPS

FP32 (float)

5.120 TFLOPS

-

FP64 (double)

640.0 GFLOPS

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

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 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

-

CUDA

-

4.0

Shader Model

6.3

Related GPU Comparisons

1

AMD Radeon HD 8760 OEM vs ATI Radeon HD 2900 XTX

2

NVIDIA GeForce GT 730 vs ATI Radeon HD 2900 XTX

3

ATI Radeon HD 5850 vs ATI Radeon HD 2900 XTX

4

NVIDIA GeForce 210 vs ATI Radeon HD 2900 XTX

5

NVIDIA GeForce GT 720 vs ATI Radeon HD 2900 XTX

6

AMD Radeon R9 FURY vs ATI Radeon HD 2900 XTX

7

AMD Radeon HD 7950 vs ATI Radeon HD 2900 XTX

8

ATI Radeon HD 2900 XTX vs AMD Radeon HD 7950 Monica BIOS 1

9

ATI Radeon HD 2900 XTX vs NVIDIA GeForce GT 630 Rev. 2

10

ATI Radeon HD 2900 XTX vs AMD Radeon RX 550X 640SP

Related News

1

Time to Step Up, AMD and Intel! Nvidia Faces Antitrust Lawsuits in France, US, and EU

2

Intel Arrow Lake-S Features Dual Direct M.2 Slots: One PCIe 5.0 x4 and One PCIe 4.0 x4

3

AMD Ryzen 9000X3D Series to Feature Fully Unlocked Overclocking; DDR5-6400: The 'Sweet Spot' for Zen 5 Memory Speeds

4

Intel Z890 Motherboard Specs Leaked: Farewell to DDR4 Memory

5

AMD Ryzen 9000 Series Now Available for Pre-order in Europe: 9950X Priced at €660, Shipping by August 2

6

AMD's Latest Breakthrough Technology Could Change the Game in the Future

7

Researchers Utilize NVIDIA Omniverse Platform to Analyze and Improve 3D Stacked Chip Designs

8

TSMC to Receive Over 60 EUV Lithography Machines Over the Next Two Years, Investing More Than $12.3 Billion

9

Samsung's Own 3nm Yield is Disheartening: Galaxy S25 May Introduce MediaTek for the First Time

10

AMD Ryzen 9000 DDR5 Memory Frequency Soars: Reaches 8000MHz with All Four Slots Occupied