Home GPU Comparison AMD Radeon HD 7770 GHz Edition vs AMD Radeon RX 6600 XT

AMD Radeon HD 7770 GHz Edition vs AMD Radeon RX 6600 XT

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7770 GHz Edition and 8GB VRAM Radeon RX 6600 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7770 GHz Edition 's Advantages
Lower TDP (80W vs 160W)
AMD Radeon RX 6600 XT 's Advantages
Released 9 years and 5 months late
Boost Clock2589MHz
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (256.0GB/s vs 72.00GB/s)
1408 additional rendering cores

Score

Benchmark

FP32 (float)
Radeon HD 7770 GHz Edition
1.28 TFLOPS
Radeon RX 6600 XT +728%
10.6 TFLOPS
VS

Graphics Card

Feb 2012
Release Date
Jul 2021
Southern Islands
Generation
Navi II
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x8

Clock Speeds

-
Base Clock
1968 MHz
-
Boost Clock
2589 MHz
1125 MHz
Memory Clock
2000 MHz

Memory

1024MB
Memory Size
8GB
GDDR5
Memory Type
GDDR6
128bit
Memory Bus
128bit
72.00GB/s
Bandwidth
256.0GB/s

Render Config

10
Compute Units
32
-
-
-
640
Shading Units
2048
40
TMUs
128
16
ROPs
64
-
-
-
-
RT Cores
32
16 KB (per CU)
L1 Cache
128 KB per Array
256 KB
L2 Cache
2 MB
-
L3 Cache
32 MB

Theoretical Performance

16.00 GPixel/s
Pixel Rate
165.7 GPixel/s
40.00 GTexel/s
Texture Rate
331.4 GTexel/s
-
FP16 (half)
21.21 TFLOPS
1280 GFLOPS
FP32 (float)
10.60 TFLOPS
80.00 GFLOPS
FP64 (double)
662.8 GFLOPS

Board Design

80W
TDP
160W
250 W
Suggested PSU
450 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1 3x DisplayPort 1.4a
1x 6-pin
Power Connectors
1x 8-pin

Graphics Processor

Cape Verde
GPU Name
Navi 23
Cape Verde XT
GPU Variant
Navi 23 XT (215-130000006)
GCN 1.0
Architecture
RDNA 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
7 nm
1.5 billion
Transistors
11.06 billion
123 mm²
Die Size
237 mm²

Graphics Features

12 (11_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.2
OpenCL
2.1
1.2
Vulkan
1.3
-
-
-
5.1
Shader Model
6.7

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