AMD Radeon HD 8490 OEM vs ATI Radeon HD 4850

VS

AMD Radeon HD 8490 OEM

ATI Radeon HD 4850

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 OEM and 512MB VRAM Radeon HD 4850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 8490 OEM 's Advantages

Released 5 years and 1 months late

More VRAM (1024GB vs 512GB)

Lower TDP (35W vs 110W)

ATI Radeon HD 4850 's Advantages

Larger VRAM bandwidth (63.55GB/s vs 14.40GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon HD 4850 +257%

1 TFLOPS

Radeon HD 8490 OEM

VS

Radeon HD 4850

Graphics Card

Jul 2013

Release Date

Jun 2008

Sea Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

993 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

14.40GB/s

Bandwidth

63.55GB/s

Render Config

2

Compute Units

10

-

160

Shading Units

800

8

TMUs

40

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

3.500 GPixel/s

Pixel Rate

10.00 GPixel/s

7.000 GTexel/s

Texture Rate

25.00 GTexel/s

-

280.0 GFLOPS

FP32 (float)

1000 GFLOPS

-

FP64 (double)

200.0 GFLOPS

Board Design

35W

TDP

110W

200 W

Suggested PSU

300 W

1x DVI 1x DisplayPort 1.1

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Caicos

GPU Name

RV770

Caicos XTX

GPU Variant

RV770 PRO (215-0669065)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.37 billion

Transistors

0.956 billion

67 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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