AMD Radeon RX 6900 XTX vs AMD Radeon HD 8770 OEM

VS

AMD Radeon RX 6900 XTX

AMD Radeon HD 8770 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XTX and 1024MB VRAM Radeon HD 8770 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XTX 's Advantages

Boost Clock2435MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (576.0GB/s vs 96.00GB/s)

4224 additional rendering cores

AMD Radeon HD 8770 OEM 's Advantages

Lower TDP (85W vs 330W)

Score

Benchmark

FP32 (float)

Radeon RX 6900 XTX +1224%

24.93 TFLOPS

Radeon HD 8770 OEM

1.882 TFLOPS

Radeon RX 6900 XTX

VS

Radeon HD 8770 OEM

Graphics Card

Unknown

Release Date

Sep 2013

Navi II

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

2075 MHz

Base Clock

-

2435 MHz

Boost Clock

-

2250 MHz

Memory Clock

1500 MHz

Memory

16GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

576.0GB/s

Bandwidth

96.00GB/s

Render Config

80

Compute Units

14

-

5120

Shading Units

896

320

TMUs

56

128

ROPs

16

-

80

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

256 KB

128 MB

L3 Cache

-

Theoretical Performance

311.7 GPixel/s

Pixel Rate

16.80 GPixel/s

779.2 GTexel/s

Texture Rate

58.80 GTexel/s

49.87 TFLOPS

FP16 (half)

-

24.93 TFLOPS

FP32 (float)

1.882 TFLOPS

1.558 TFLOPS

FP64 (double)

117.6 GFLOPS

Board Design

330W

TDP

85W

700 W

Suggested PSU

250 W

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

Outputs

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

2x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

Navi 21

GPU Name

Bonaire

Navi 21 XTXH (215-121000247)

GPU Variant

Bonaire XT (215-0839039)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

2.08 billion

520 mm²

Die Size

160 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.0

1.3

Vulkan

1.2

-

6.5

Shader Model

6.3

Related GPU Comparisons

1

AMD Radeon RX 6900 XTX vs NVIDIA L20

2

AMD Radeon RX 6900 XTX vs AMD Radeon PRO W7700

3

AMD Radeon RX 6900 XTX vs NVIDIA GeForce 605 OEM

4

AMD Radeon RX 6900 XTX vs AMD FirePro W4300

5

AMD Radeon RX 6900 XTX vs ATI FirePro V5700

6

AMD Radeon RX 6900 XTX vs AMD Radeon Pro V420

7

AMD Radeon RX 6900 XTX vs AMD Radeon RX 455 OEM

8

AMD Radeon RX 6900 XTX vs NVIDIA GeForce RTX 4070 Ti SUPER AD102

9

AMD Radeon RX 6900 XTX vs ATI FirePro V3900

10

AMD Radeon RX 6900 XTX vs AMD Radeon R5 230

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