Intel Arc A780 vs ATI Radeon HD 2900 GT

VS

Intel Arc A780

ATI Radeon HD 2900 GT

We compared two Desktop platform GPUs: 16GB VRAM Arc A780 and 256MB VRAM Radeon HD 2900 GT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

Intel Arc A780 's Advantages

Boost Clock2200MHz

More VRAM (16GB vs 256GB)

Larger VRAM bandwidth (559.6GB/s vs 51.20GB/s)

3856 additional rendering cores

ATI Radeon HD 2900 GT 's Advantages

Lower TDP (150W vs 200W)

Score

Benchmark

FP32 (float)

Arc A780 +6156%

18.02 TFLOPS

Radeon HD 2900 GT

0.288 TFLOPS

Arc A780

VS

Radeon HD 2900 GT

Graphics Card

Unknown

Release Date

Nov 2007

Alchemist(Arc 7)

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

2200 MHz

Base Clock

-

2200 MHz

Boost Clock

-

1093 MHz

Memory Clock

800 MHz

Memory

16GB

Memory Size

256MB

GDDR6X

Memory Type

GDDR3

256bit

Memory Bus

256bit

559.6GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

3

-

4096

Shading Units

240

256

TMUs

12

128

ROPs

12

512

Tensor Cores

-

32

RT Cores

-

16 MB

L2 Cache

128 KB

-

Theoretical Performance

281.6 GPixel/s

Pixel Rate

7.212 GPixel/s

563.2 GTexel/s

Texture Rate

7.212 GTexel/s

36.04 TFLOPS

FP16 (half)

-

18.02 TFLOPS

FP32 (float)

288.5 GFLOPS

2.253 TFLOPS

FP64 (double)

-

Board Design

200W

TDP

150W

550 W

Suggested PSU

450 W

1x HDMI 2.13x DisplayPort 2.0

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 8-pin

Graphics Processor

DG2-512

GPU Name

R600

ACM-G10

GPU Variant

R600 GT (215RGFDKA13FG)

Generation 12.7

Architecture

TeraScale

TSMC

Foundry

TSMC

6 nm

Process Size

80 nm

21.7 billion

Transistors

0.72 billion

406 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)

3.0

OpenCL

N/A

1.3

Vulkan

N/A

-

6.6

Shader Model

4.0

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