AMD Radeon RX 6700 XT vs AMD Radeon HD 6870
GPU · Specs Compare
Graphics Card
Release Date
Mar 2021
Oct 2010
Generation
Navi II
Northern Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 2.0 x16
Clock Speeds
Base Clock
2321 MHz
—
Boost Clock
2581 MHz
—
Memory Clock
2000 MHz
1050 MHz
Memory
Memory Size
12GB
1024MB
Memory Type
GDDR6
GDDR5
Memory Bus
192bit
256bit
Bandwidth
384.0GB/s
134.4GB/s
Render Config
Compute Units
40
14
Shading Units
2560
1120
TMUs
160
56
ROPs
64
32
RT Cores
40
—
L1 Cache
128 KB per Array
8 KB (per CU)
L2 Cache
3 MB
512 KB
L3 Cache
96 MB
—
Theoretical Performance
Pixel Rate
165.2 GPixel/s
28.80 GPixel/s
Texture Rate
413.0 GTexel/s
50.40 GTexel/s
FP16 (half)
26.43 TFLOPS
—
FP32 (float)
13.21 TFLOPS
2.016 TFLOPS
FP64 (double)
825.9 GFLOPS
—
Graphics Processor
GPU Name
Navi 22
Barts
GPU Variant
Navi 22 XT(215-127000006)
Barts XT(215-0798000)
Architecture
RDNA 2.0
TeraScale 2
Foundry
TSMC
TSMC
Process Size
7 nm
40 nm
Transistors
17.2 billion
1.7 billion
Die Size
335 mm²
255 mm²
Board Design
TDP
230W
151W
Suggested PSU
550 W
450 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-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
6.5
5.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.