GeForce GTX 780 vs Radeon HD 2900 XTX

VS

NVIDIA GeForce GTX 780

ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 3GB VRAM GeForce GTX 780 and 512MB VRAM Radeon HD 2900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

GeForce GTX 780 's Advantages

Boost Clock902MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (288.4GB/s vs 106.0GB/s)

1984 additional rendering cores

Radeon HD 2900 XTX 's Advantages

Lower TDP (240W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 780 +773%

4156

Radeon HD 2900 XTX

476

GeForce GTX 780

VS

Radeon HD 2900 XTX

Graphics Card

May 2013

Release Date

Unknown

GeForce 700

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

863 MHz

Base Clock

-

902 MHz

Boost Clock

-

1502 MHz

Memory Clock

828 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

512bit

288.4GB/s

Bandwidth

106.0GB/s

Render Config

-

Compute Units

4

2304

Shading Units

320

192

TMUs

16

48

ROPs

16

16 KB (per SMX)

L1 Cache

-

1536 KB

L2 Cache

256 KB

Theoretical Performance

43.30 GPixel/s

Pixel Rate

11.89 GPixel/s

173.2 GTexel/s

Texture Rate

11.89 GTexel/s

4.156 TFLOPS

FP32 (float)

475.5 GFLOPS

173.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

240W

600 W

Suggested PSU

550 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GK110

GPU Name

R600

GK110-300-A1

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

Kepler

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

7.08 billion

Transistors

0.72 billion

561 mm²

Die Size

420 mm²

Graphics Features

12 (11_0)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.1

Vulkan

N/A

3.5

CUDA

-

5.1

Shader Model

4.0

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