ATI Radeon HD 2900 GT vs AMD Radeon R9 280X2

VS

ATI Radeon HD 2900 GT AMD Radeon R9 280X2

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2900 GT and 3GB VRAM Radeon R9 280X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 GT 's Advantages

Lower TDP (150W vs 375W)

AMD Radeon R9 280X2 's Advantages

Boost Clock1000MHz

Larger VRAM bandwidth (288.0GB/s vs 51.20GB/s)

1808 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2900 GT

0.288 TFLOPS

Radeon R9 280X2 +1322%

4.096 TFLOPS

Radeon HD 2900 GT

VS

Radeon R9 280X2

Graphics Card

Nov 2007

Release Date

Unknown

Radeon R600

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

950 MHz

-

Boost Clock

1000 MHz

800 MHz

Memory Clock

1500 MHz

Memory

256MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

384bit

51.20GB/s

Bandwidth

288.0GB/s

Render Config

-

SM Count

-

3

Compute Units

32

240

Shading Units

2048

12

TMUs

128

12

ROPs

32

-

Tensor Cores

-

RT Cores

-

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

768 KB

Theoretical Performance

7.212 GPixel/s

Pixel Rate

32.00 GPixel/s

7.212 GTexel/s

Texture Rate

128.0 GTexel/s

-

FP16 (half)

-

288.5 GFLOPS

FP32 (float)

4.096 TFLOPS

-

FP64 (double)

1024 GFLOPS

Graphics Processor

R600

GPU Name

Tahiti

R600 GT (215RGFDKA13FG)

GPU Variant

Tahiti XTL (215-0821065)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

4.313 billion

420 mm²

Die Size

352 mm²

Board Design

150W

TDP

375W

450 W

Suggested PSU

750 W

2x DVI 1x S-Video

Outputs

6x mini-DisplayPort 1.2

1x 8-pin

Power Connectors

3x 8-pin

Graphics Features

10.0 (10_0)

DirectX

12 (11_1)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

CUDA

-

4.0

Shader Model

5.1

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