ATI Radeon HD 4890 vs NVIDIA GeForce GTX 745 OEM

VS

ATI Radeon HD 4890

NVIDIA GeForce GTX 745 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4890 and 4GB VRAM GeForce GTX 745 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4890 's Advantages

Larger VRAM bandwidth (124.8GB/s vs 28.80GB/s)

416 additional rendering cores

NVIDIA GeForce GTX 745 OEM 's Advantages

Released 4 years and 10 months late

More VRAM (4GB vs 1024GB)

Lower TDP (55W vs 190W)

Score

Benchmark

FP32 (float)

Radeon HD 4890 +71%

1.36 TFLOPS

GeForce GTX 745 OEM

0.793 TFLOPS

Radeon HD 4890

VS

GeForce GTX 745 OEM

Graphics Card

Apr 2009

Release Date

Feb 2014

Radeon R700

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

975 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

124.8GB/s

Bandwidth

28.80GB/s

Render Config

10

Compute Units

-

800

Shading Units

384

40

TMUs

24

16

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SMM)

256 KB

L2 Cache

2 MB

-

Theoretical Performance

13.60 GPixel/s

Pixel Rate

16.53 GPixel/s

34.00 GTexel/s

Texture Rate

24.79 GTexel/s

-

1360 GFLOPS

FP32 (float)

793.3 GFLOPS

272.0 GFLOPS

FP64 (double)

24.79 GFLOPS

Board Design

190W

TDP

55W

450 W

Suggested PSU

250 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 2.0 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

RV790

GPU Name

GM107

RV790 XT (215-0758016)

GPU Variant

GM107-220-A2

TeraScale

Architecture

Maxwell

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.959 billion

Transistors

1.87 billion

282 mm²

Die Size

148 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

5.0

4.1

Shader Model

5.1

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