Home GPU Comparison AMD Radeon RX 6950 XT vs AMD Radeon HD 6870 X2

AMD Radeon RX 6950 XT vs AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6950 XT and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6950 XT 's Advantages
Released 10 years and 10 months late
Boost Clock2310MHz
More VRAM (16GB vs 1024GB)
Larger VRAM bandwidth (576.0GB/s vs 134.4GB/s)
4000 additional rendering cores
AMD Radeon HD 6870 X2 's Advantages
Lower TDP (300W vs 335W)

Score

Benchmark

FP32 (float)
Radeon RX 6950 XT +1073%
23.65 TFLOPS
Radeon HD 6870 X2
2.016 TFLOPS
VS

Graphics Card

May 2022
Release Date
Jul 2011
Navi II
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

1860 MHz
Base Clock
-
2310 MHz
Boost Clock
-
2250 MHz
Memory Clock
1050 MHz

Memory

16GB
Memory Size
1024MB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
576.0GB/s
Bandwidth
134.4GB/s

Render Config

80
Compute Units
14
-
-
-
5120
Shading Units
1120
320
TMUs
56
128
ROPs
32
-
-
-
80
RT Cores
-
128 KB per Array
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
512 KB
128 MB
L3 Cache
-

Theoretical Performance

295.7 GPixel/s
Pixel Rate
28.80 GPixel/s
739.2 GTexel/s
Texture Rate
50.40 GTexel/s
47.31 TFLOPS
FP16 (half)
-
23.65 TFLOPS
FP32 (float)
2.016 TFLOPS
1478 GFLOPS
FP64 (double)
-

Board Design

335W
TDP
300W
700 W
Suggested PSU
700 W
1x HDMI 2.1 2x DisplayPort 1.4a
Outputs
2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1
2x 8-pin
Power Connectors
-

Graphics Processor

Navi 21
GPU Name
Barts
Navi 21 KXTX (215-121000289)
GPU Variant
Barts XT (215-0798000)
RDNA 2.0
Architecture
TeraScale 2
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
26.8 billion
Transistors
1.7 billion
520 mm²
Die Size
255 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
11.2 (11_0)
4.6
OpenGL
4.4
2.1
OpenCL
1.2
1.3
Vulkan
N/A
-
-
-
6.5
Shader Model
5.0

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