Radeon RX 5700 XT vs Radeon HD 6990
We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 5700 XT and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon RX 5700 XT 's Advantages
Released 8 years and 4 months late
Boost Clock1905MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (448.0GB/s vs 160.0GB/s)
1024 additional rendering cores
Lower TDP (225W vs 375W)
Score
Benchmark
FP32 (float)
Radeon RX 5700 XT
+282%
9754
Radeon HD 6990
2550
Graphics Card
Jul 2019
Release Date
Mar 2011
Navi
Generation
Northern Islands
Desktop
Type
Desktop
PCIe 4.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1605 MHz
Base Clock
-
1905 MHz
Boost Clock
-
1750 MHz
Memory Clock
1250 MHz
Memory
8GB
Memory Size
2GB
GDDR6
Memory Type
GDDR5
256bit
Memory Bus
256bit
448.0GB/s
Bandwidth
160.0GB/s
Render Config
40
Compute Units
24
2560
Shading Units
1536
160
TMUs
96
64
ROPs
32
-
L1 Cache
8 KB (per CU)
4 MB
L2 Cache
512 KB
Theoretical Performance
121.9 GPixel/s
Pixel Rate
26.56 GPixel/s
304.8 GTexel/s
Texture Rate
79.68 GTexel/s
19.51 TFLOPS
FP16 (half)
-
9.754 TFLOPS
FP32 (float)
2.550 TFLOPS
609.6 GFLOPS
FP64 (double)
637.4 GFLOPS
Board Design
225W
TDP
375W
550 W
Suggested PSU
750 W
1x HDMI 2.1
3x DisplayPort 1.4a
Outputs
1x DVI
4x mini-DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
2x 8-pin
Graphics Processor
Navi 10
GPU Name
Antilles
Navi 10 XT
(215-0917210)
GPU Variant
Antilles XT
(215-0807027)
RDNA 1.0
Architecture
TeraScale 3
TSMC
Foundry
TSMC
7 nm
Process Size
40 nm
10.3 billion
Transistors
2.64 billion
251 mm²
Die Size
389 mm²
Graphics Features
12 (12_1)
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
