AMD Radeon HD 8490 OEM vs ATI Radeon HD 2900 XT

VS

AMD Radeon HD 8490 OEM ATI Radeon HD 2900 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 8490 OEM and 512MB VRAM Radeon HD 2900 XT 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 6 years and 2 months late

More VRAM (1024GB vs 512GB)

Lower TDP (35W vs 215W)

ATI Radeon HD 2900 XT 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 14.40GB/s)

160 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 8490 OEM

0.28 TFLOPS

Radeon HD 2900 XT +70%

0.476 TFLOPS

Radeon HD 8490 OEM

VS

Radeon HD 2900 XT

Graphics Card

Jul 2013

Release Date

May 2007

Sea Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

828 MHz

Memory

1024MB

Memory Size

512MB

DDR3

Memory Type

GDDR3

64bit

Memory Bus

512bit

14.40GB/s

Bandwidth

106.0GB/s

Render Config

-

SM Count

-

2

Compute Units

4

160

Shading Units

320

8

TMUs

16

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

256 KB

Theoretical Performance

3.500 GPixel/s

Pixel Rate

11.89 GPixel/s

7.000 GTexel/s

Texture Rate

11.89 GTexel/s

-

FP16 (half)

-

280.0 GFLOPS

FP32 (float)

475.5 GFLOPS

-

FP64 (double)

-

Graphics Processor

Caicos

GPU Name

R600

Caicos XTX

GPU Variant

R600 XT (215RGMDKA13FG)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

0.37 billion

Transistors

0.72 billion

67 mm²

Die Size

420 mm²

Board Design

35W

TDP

215W

200 W

Suggested PSU

550 W

1x DVI 1x DisplayPort 1.1

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

11.2 (11_0)

DirectX

10.0 (10_0)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.0

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