ATI Radeon HD 2900 XTX vs AMD Radeon HD 7870 XT

VS

ATI Radeon HD 2900 XTX

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 XT 's Advantages

Boost Clock975MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.0GB/s vs 106.0GB/s)

1216 additional rendering cores

Lower TDP (185W vs 240W)

Score

Benchmark

FP32 (float)

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon HD 7870 XT +529%

2.995 TFLOPS

Radeon HD 2900 XTX

VS

Radeon HD 7870 XT

Graphics Card

Unknown

Release Date

Nov 2012

Radeon R600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

828 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

256bit

106.0GB/s

Bandwidth

192.0GB/s

Render Config

4

Compute Units

24

-

320

Shading Units

1536

16

TMUs

96

16

ROPs

32

-

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

11.89 GPixel/s

Pixel Rate

31.20 GPixel/s

11.89 GTexel/s

Texture Rate

93.60 GTexel/s

-

475.5 GFLOPS

FP32 (float)

2.995 TFLOPS

-

FP64 (double)

748.8 GFLOPS

Board Design

240W

TDP

185W

550 W

Suggested PSU

450 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

R600

GPU Name

Tahiti

R600 XTX A11 (215RGMDKA11FG)

GPU Variant

Tahiti LE (215-0821122)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.72 billion

Transistors

4.313 billion

420 mm²

Die Size

352 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_1)

3.3 (full) 4.0 (partial)

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.0

Shader Model

5.1

Related GPU Comparisons

1

ATI Radeon HD 2900 XTX vs NVIDIA GeForce RTX 4070

2

ATI Radeon HD 2900 XTX vs NVIDIA CMP 30HX

3

ATI Radeon HD 2900 XTX vs AMD FirePro S9100

4

ATI Radeon HD 2900 XTX vs NVIDIA GeForce 310 OEM

5

ATI Radeon HD 2900 XTX vs NVIDIA GeForce GTX 1650 GDDR6

6

ATI Radeon HD 2900 XTX vs AMD Radeon RX 6600 XT

7

ATI Radeon HD 2900 XTX vs NVIDIA Quadro FX 550

8

ATI Radeon HD 2900 XTX vs ATI Radeon HD 4870

9

ATI Radeon HD 2900 XTX vs Intel H3C XG310

10

ATI Radeon HD 2900 XTX vs AMD FirePro W7000

Related News

1

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

2

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

3

CXMT Reportedly Achieves 80% Yield in DDR5 Production

4

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

5

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

6

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

7

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

8

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

9

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

10

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption