AMD Radeon HD 6870 X2 vs ATI Radeon HD 2900 PRO

VS

AMD Radeon HD 6870 X2

ATI Radeon HD 2900 PRO

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 512MB VRAM Radeon HD 2900 PRO to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

Released 3 years and 7 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 51.20GB/s)

800 additional rendering cores

ATI Radeon HD 2900 PRO 's Advantages

Lower TDP (200W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2 +425%

2.016 TFLOPS

Radeon HD 2900 PRO

0.384 TFLOPS

Radeon HD 6870 X2

VS

Radeon HD 2900 PRO

Graphics Card

Jul 2011

Release Date

Dec 2007

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

51.20GB/s

Render Config

14

Compute Units

4

-

1120

Shading Units

320

56

TMUs

16

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

128 KB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

9.600 GPixel/s

50.40 GTexel/s

Texture Rate

9.600 GTexel/s

-

2.016 TFLOPS

FP32 (float)

384.0 GFLOPS

-

Board Design

300W

TDP

200W

700 W

Suggested PSU

550 W

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

Outputs

2x DVI 1x S-Video

-

Power Connectors

1x 8-pin

Graphics Processor

Barts

GPU Name

R600

Barts XT (215-0798000)

GPU Variant

R600 PRO (215RGMDKA13FG)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

1.7 billion

Transistors

0.72 billion

255 mm²

Die Size

420 mm²

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

-

5.0

Shader Model

4.0

Related GPU Comparisons

1

AMD Radeon HD 6870 X2 vs NVIDIA B200 SXM 192 GB

2

AMD Radeon HD 6870 X2 vs NVIDIA GeForce RTX 5060 Mobile

3

AMD Radeon HD 6870 X2 vs AMD Radeon HD 7970 X2

4

AMD Radeon HD 6870 X2 vs AMD Radeon RX 550 512SP

5

AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 1060 3 GB

6

AMD Radeon HD 6870 X2 vs ATI Radeon HD 5830

7

AMD Radeon HD 6870 X2 vs ATI Radeon HD 4650 AGP

8

AMD Radeon HD 6870 X2 vs NVIDIA GeForce GTX 1060 8 GB GDDR5X

9

AMD Radeon HD 6870 X2 vs NVIDIA P104 101

10

AMD Radeon HD 6870 X2 vs ATI FirePro V4900

Related News

1

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

2

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

3

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

4

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

5

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

6

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

7

CXMT Reportedly Achieves 80% Yield in DDR5 Production

8

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

9

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

10

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps