AMD Radeon HD 6870 1600SP Edition vs AMD Radeon RX 6900 XT
GPU · Specs Compare
Graphics Card
Release Date
Jan 2013
Oct 2020
Generation
Northern Islands
Navi II
Type
Desktop
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 4.0 x16
Clock Speeds
Memory Clock
1050 MHz
2000 MHz
Base Clock
—
1825 MHz
Boost Clock
—
2250 MHz
Memory
Memory Size
1024MB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
256bit
256bit
Bandwidth
134.4GB/s
512.0GB/s
Render Config
Compute Units
20
80
Shading Units
1600
5120
TMUs
80
320
ROPs
32
128
L1 Cache
8 KB (per CU)
128 KB per Array
L2 Cache
512 KB
4 MB
RT Cores
—
80
L3 Cache
—
128 MB
Theoretical Performance
Pixel Rate
27.20 GPixel/s
288.0 GPixel/s
Texture Rate
68.00 GTexel/s
720.0 GTexel/s
FP32 (float)
2.720 TFLOPS
23.04 TFLOPS
FP64 (double)
544.0 GFLOPS
1440.0 GFLOPS
FP16 (half)
—
46.08 TFLOPS
Graphics Processor
GPU Name
Cypress
Navi 21
GPU Variant
Cypress XT(215-0735033)
Navi 21 XTX(215-121000167)
Architecture
TeraScale 2
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
40 nm
7 nm
Transistors
2.154 billion
26.8 billion
Die Size
334 mm²
520 mm²
Board Design
TDP
175W
300W
Suggested PSU
450 W
700 W
Outputs
2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1
1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C
Power Connectors
2x 6-pin
2x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 Ultimate (12_2)
OpenGL
4.4
4.6
OpenCL
1.2
2.1
Vulkan
N/A
1.4
Shader Model
5.0
6.8
Benchmark
3DMark Time Spy
—
20,764
▲ Specs Compare
Data sourced from official specifications and benchmark tests.