AMD Radeon RX 7800 vs AMD Radeon HD 7950 Boost

VS

AMD Radeon RX 7800

AMD Radeon HD 7950 Boost

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 and 3GB VRAM Radeon HD 7950 Boost to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 's Advantages

Released 10 years and 7 months late

Boost Clock has increased by 203% (2800MHz vs 925MHz)

More VRAM (16GB vs 3GB)

Larger VRAM bandwidth (576.0GB/s vs 240.0GB/s)

2048 additional rendering cores

AMD Radeon HD 7950 Boost 's Advantages

Lower TDP (200W vs 300W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 +1025%

37.32 TFLOPS

Radeon HD 7950 Boost

3.315 TFLOPS

Radeon RX 7800

VS

Radeon HD 7950 Boost

Graphics Card

Jan 2023

Release Date

Jun 2012

Navi III

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1800 MHz

Base Clock

850 MHz

2800 MHz

Boost Clock

925 MHz

2250 MHz

Memory Clock

1250 MHz

Memory

16GB

Memory Size

3GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

384bit

576.0GB/s

Bandwidth

240.0GB/s

Render Config

60

Compute Units

28

-

3840

Shading Units

1792

240

TMUs

112

128

ROPs

32

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

768 KB

64 MB

L3 Cache

-

Theoretical Performance

358.4 GPixel/s

Pixel Rate

29.60 GPixel/s

672.0 GTexel/s

Texture Rate

103.6 GTexel/s

86.02 TFLOPS

FP16 (half)

-

43.01 TFLOPS

FP32 (float)

3.315 TFLOPS

1344 GFLOPS

FP64 (double)

828.8 GFLOPS

Board Design

300W

TDP

200W

700 W

Suggested PSU

550 W

1x HDMI 2.1a 3x DisplayPort 2.1

Outputs

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

2x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Navi 32

GPU Name

Tahiti

Navi 32 XT

GPU Variant

Tahiti PRO2 (215-0821282)

RDNA 3.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

5 nm

Process Size

28 nm

Unknown

Transistors

4.313 billion

346 mm²

Die Size

352 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.2

OpenCL

1.2

1.3

Vulkan

1.2

-

6.7

Shader Model

5.1

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