ATI Radeon HD 2900 XT vs ATI Radeon HD 4860

VS

ATI Radeon HD 2900 XT

ATI Radeon HD 4860

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XT and 512MB VRAM Radeon HD 4860 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XT 's Advantages

Larger VRAM bandwidth (106.0GB/s vs 96.00GB/s)

ATI Radeon HD 4860 's Advantages

Released 2 years and 4 months late

320 additional rendering cores

Lower TDP (130W vs 215W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XT

0.476 TFLOPS

Radeon HD 4860 +88%

0.896 TFLOPS

Radeon HD 2900 XT

VS

Radeon HD 4860

Graphics Card

May 2007

Release Date

Sep 2009

Radeon R600

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

828 MHz

Memory Clock

750 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

256bit

106.0GB/s

Bandwidth

96.00GB/s

Render Config

4

Compute Units

8

-

320

Shading Units

640

16

TMUs

32

16

ROPs

16

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

11.20 GPixel/s

11.89 GTexel/s

Texture Rate

22.40 GTexel/s

-

475.5 GFLOPS

FP32 (float)

896.0 GFLOPS

-

FP64 (double)

179.2 GFLOPS

Board Design

215W

TDP

130W

550 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

R600

GPU Name

RV790

R600 XT (215RGMDKA13FG)

GPU Variant

RV790 GT

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

80 nm

Process Size

55 nm

0.72 billion

Transistors

0.959 billion

420 mm²

Die Size

282 mm²

Graphics Features

10.0 (10_0)

DirectX

10.1 (10_1)

3.3 (full) 4.0 (partial)

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

4.0

Shader Model

4.1

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