Home GPU Comparison AMD Radeon RX 6900 XT vs AMD Radeon HD 8970 OEM

AMD Radeon RX 6900 XT vs AMD Radeon HD 8970 OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6900 XT and 3GB VRAM Radeon HD 8970 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6900 XT 's Advantages
Released 7 years and 9 months late
Boost Clock2250MHz
More VRAM (16GB vs 3GB)
Larger VRAM bandwidth (512.0GB/s vs 264.0GB/s)
3072 additional rendering cores
AMD Radeon HD 8970 OEM 's Advantages
Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)
Radeon RX 6900 XT +508%
23.04 TFLOPS
Radeon HD 8970 OEM
3.789 TFLOPS
VS

Graphics Card

Oct 2020
Release Date
Jan 2013
Navi II
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 3.0 x16

Clock Speeds

1825 MHz
Base Clock
-
2250 MHz
Boost Clock
-
2000 MHz
Memory Clock
1375 MHz

Memory

16GB
Memory Size
3GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
384bit
512.0GB/s
Bandwidth
264.0GB/s

Render Config

80
Compute Units
32
-
-
-
5120
Shading Units
2048
320
TMUs
128
128
ROPs
32
-
-
-
80
RT Cores
-
128 KB per Array
L1 Cache
16 KB (per CU)
4 MB
L2 Cache
768 KB
128 MB
L3 Cache
-

Theoretical Performance

288.0 GPixel/s
Pixel Rate
29.60 GPixel/s
720.0 GTexel/s
Texture Rate
118.4 GTexel/s
46.08 TFLOPS
FP16 (half)
-
23.04 TFLOPS
FP32 (float)
3.789 TFLOPS
1440 GFLOPS
FP64 (double)
947.2 GFLOPS

Board Design

300W
TDP
250W
700 W
Suggested PSU
600 W
1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C
Outputs
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
2x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin

Graphics Processor

Navi 21
GPU Name
Tahiti
Navi 21 XTX (215-121000167)
GPU Variant
Tahiti XT (215-0821060)
RDNA 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
7 nm
Process Size
28 nm
26.8 billion
Transistors
4.313 billion
520 mm²
Die Size
352 mm²

Graphics Features

12 Ultimate (12_2)
DirectX
12 (11_1)
4.6
OpenGL
4.6
2.1
OpenCL
1.2
1.3
Vulkan
1.2
-
-
-
6.5
Shader Model
5.1

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