ATI Radeon HD 4890 vs NVIDIA GeForce GTX 780 Ti Engineering Sample

VS

ATI Radeon HD 4890

NVIDIA GeForce GTX 780 Ti Engineering Sample

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 3GB VRAM GeForce GTX 780 Ti Engineering Sample to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4890 's Advantages

Lower TDP (190W vs 250W)

NVIDIA GeForce GTX 780 Ti Engineering Sample 's Advantages

Boost Clock928MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (336.6GB/s vs 124.8GB/s)

2080 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4890

1.36 TFLOPS

GeForce GTX 780 Ti Engineering Sample +293%

5.345 TFLOPS

Radeon HD 4890

VS

GeForce GTX 780 Ti Engineering Sample

Graphics Card

Apr 2009

Release Date

Unknown

Radeon R700

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

875 MHz

-

Boost Clock

928 MHz

975 MHz

Memory Clock

1753 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

124.8GB/s

Bandwidth

336.6GB/s

Render Config

10

Compute Units

-

800

Shading Units

2880

40

TMUs

240

16

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

1536 KB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

55.68 GPixel/s

34.00 GTexel/s

Texture Rate

222.7 GTexel/s

-

1360 GFLOPS

FP32 (float)

5.345 TFLOPS

272.0 GFLOPS

FP64 (double)

222.7 GFLOPS

Board Design

190W

TDP

250W

450 W

Suggested PSU

600 W

2x DVI 1x S-Video

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV790

GPU Name

GK180

RV790 XT (215-0758016)

GPU Variant

GK180-425-A1

TeraScale

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.959 billion

Transistors

7.08 billion

282 mm²

Die Size

561 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.2.175

-

CUDA

3.5

4.1

Shader Model

5.1

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