AMD Radeon RX 6600 XT vs AMD Radeon HD 6870 X2
GPU Specs Compare
Graphics Card
Release Date
Jul 2021
Jul 2011
Generation
Navi II
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 2.0 x16
Clock Speeds
Base Clock
1968 MHz
-
Boost Clock
2589 MHz
-
Memory Clock
2000 MHz
1050 MHz
Memory
Memory Size
8GB
1024MB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
256bit
Bandwidth
256.0GB/s
134.4GB/s
Render Config
Compute Units
32
14
Shading Units
2048
1120
TMUs
128
56
ROPs
64
32
RT Cores
32
-
L1 Cache
128 KB per Array
8 KB (per CU)
L2 Cache
2 MB
512 KB
L3 Cache
32 MB
-
Theoretical Performance
Pixel Rate
165.7 GPixel/s
28.80 GPixel/s
Texture Rate
331.4 GTexel/s
50.40 GTexel/s
FP16 (half)
21.21 TFLOPS
-
FP32 (float)
10.60 TFLOPS
2.016 TFLOPS
FP64 (double)
662.8 GFLOPS
-
Graphics Processor
GPU Name
Navi 23
Barts
GPU Variant
Navi 23 XT(215-130000006)
Barts XT(215-0798000)
Architecture
RDNA 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
7 nm
40 nm
Transistors
11.06 billion
1.7 billion
Die Size
237 mm²
255 mm²
Board Design
TDP
160W
300W
Suggested PSU
450 W
700 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
1x 8-pin
-
Graphics Features
DirectX
12 Ultimate (12_2)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
2.1
1.2
Vulkan
1.3
N/A
Shader Model
6.7
5.0
📊 Benchmark
3DMark Time Spy
9,656
-
3DMark Time Spy Extreme
4,399
-
3DMark Speed Way
1,675
-
Battlefield 5 1080p
144
-
Shadow of the Tomb Raider 2160p
38
-
Cyberpunk 2077 2160p
29
-
Shadow of the Tomb Raider 1440p
72
-
Cyberpunk 2077 1440p
36
-
Shadow of the Tomb Raider 1080p
119
-
Battlefield 5 2160p
58
-
Blender
1,213
-
Cyberpunk 2077 1080p
58
-
Battlefield 5 1440p
111
-
GTA 5 2160p
61
-
GTA 5 1440p
82
-
GTA 5 1080p
149
-