AMD Radeon RX 7800 vs ATI Radeon HD 2900 XTX

VS

AMD Radeon RX 7800 ATI Radeon HD 2900 XTX

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 512MB VRAM Radeon HD 2900 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages

Boost Clock2800MHz

Larger VRAM bandwidth (576.0GB/s vs 106.0GB/s)

3520 additional rendering cores

ATI Radeon HD 2900 XTX 's Advantages

Lower TDP (240W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 +7740%

37.32 TFLOPS

Radeon HD 2900 XTX

0.476 TFLOPS

Radeon RX 7800

VS

Radeon HD 2900 XTX

Graphics Card

Jan 2023

Release Date

Unknown

Navi III

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

1800 MHz

Base Clock

-

2800 MHz

Boost Clock

-

2250 MHz

Memory Clock

828 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

512bit

576.0GB/s

Bandwidth

106.0GB/s

Render Config

-

SM Count

-

60

Compute Units

4

3840

Shading Units

320

240

TMUs

16

128

ROPs

16

-

Tensor Cores

-

60

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

256 KB

Theoretical Performance

358.4 GPixel/s

Pixel Rate

11.89 GPixel/s

672.0 GTexel/s

Texture Rate

11.89 GTexel/s

86.02 TFLOPS

FP16 (half)

-

43.01 TFLOPS

FP32 (float)

475.5 GFLOPS

1344 GFLOPS

FP64 (double)

-

Graphics Processor

Navi 32

GPU Name

R600

Navi 32 XT

GPU Variant

R600 XTX A11 (215RGMDKA11FG)

RDNA 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

5 nm

Process Size

80 nm

Unknown

Transistors

0.72 billion

346 mm²

Die Size

420 mm²

Board Design

300W

TDP

240W

700 W

Suggested PSU

550 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

2x 6-pin

Graphics Features

12 Ultimate (12_2)

DirectX

10.0 (10_0)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.2

OpenCL

N/A

1.3

Vulkan

N/A

-

CUDA

-

6.7

Shader Model

4.0

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