AMD Radeon Sky 700 vs ATI Radeon HD 4890

VS

We compared two Desktop platform GPUs: 6GB VRAM Radeon Sky 700 and 1024MB VRAM Radeon HD 4890 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Sky 700 's Advantages

Released 3 years and 11 months late

More VRAM (6GB vs 1GB)

Larger VRAM bandwidth (264.0GB/s vs 124.8GB/s)

992 additional rendering cores

ATI Radeon HD 4890 's Advantages

Lower TDP (190W vs 225W)

Score

Benchmark

FP32 (float)

Radeon Sky 700 +137%

3.226 TFLOPS

Radeon HD 4890

1.36 TFLOPS

Radeon Sky 700

VS

Radeon HD 4890

Graphics Card

Mar 2013

Release Date

Apr 2009

Radeon Sky

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

975 MHz

Memory

6GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

124.8GB/s

Render Config

-

SM Count

-

28

Compute Units

10

1792

Shading Units

800

112

TMUs

40

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

256 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

13.60 GPixel/s

100.8 GTexel/s

Texture Rate

34.00 GTexel/s

-

FP16 (half)

-

3.226 TFLOPS

FP32 (float)

1360 GFLOPS

806.4 GFLOPS

FP64 (double)

272.0 GFLOPS

Graphics Processor

Tahiti

GPU Name

RV790

Tahiti PRO GL

GPU Variant

RV790 XT (215-0758016)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.959 billion

352 mm²

Die Size

282 mm²

Board Design

225W

TDP

190W

550 W

Suggested PSU

450 W

1x DisplayPort 1.2

Outputs

2x DVI 1x S-Video

1x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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