Home GPU Comparison AMD Radeon HD 8990 OEM vs AMD Radeon RX 7700

AMD Radeon HD 8990 OEM vs AMD Radeon RX 7700

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 8990 OEM and 12GB VRAM Radeon RX 7700 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7700 's Advantages
Boost Clock has increased by 160% (2600MHz vs 1000MHz)
More VRAM (12GB vs 3GB)
Larger VRAM bandwidth (432.0GB/s vs 288.0GB/s)
1024 additional rendering cores
Lower TDP (200W vs 375W)

Score

Benchmark

FP32 (float)
Radeon HD 8990 OEM
4.096 TFLOPS
Radeon RX 7700 +680%
31.95 TFLOPS
VS

Graphics Card

Apr 2013
Release Date
Unknown
Sea Islands
Generation
Navi III
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 4.0 x16

Clock Speeds

950 MHz
Base Clock
1900 MHz
1000 MHz
Boost Clock
2600 MHz
1500 MHz
Memory Clock
2250 MHz

Memory

3GB
Memory Size
12GB
GDDR5
Memory Type
GDDR6
384bit
Memory Bus
192bit
288.0GB/s
Bandwidth
432.0GB/s

Render Config

32
Compute Units
48
-
-
-
2048
Shading Units
3072
128
TMUs
192
32
ROPs
96
-
-
-
-
RT Cores
48
16 KB (per CU)
L1 Cache
128 KB per Array
768 KB
L2 Cache
2 MB
-
L3 Cache
64 MB

Theoretical Performance

32.00 GPixel/s
Pixel Rate
249.6 GPixel/s
128.0 GTexel/s
Texture Rate
499.2 GTexel/s
-
FP16 (half)
63.90 TFLOPS
4.096 TFLOPS
FP32 (float)
31.95 TFLOPS
1024 GFLOPS
FP64 (double)
998.4 GFLOPS

Board Design

375W
TDP
200W
750 W
Suggested PSU
550 W
1x DVI 4x mini-DisplayPort 1.2
Outputs
1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C
2x 8-pin
Power Connectors
1x 8-pin

Graphics Processor

Malta
GPU Name
Navi 32
Malta XT (215-0849026)
GPU Variant
Navi 32
GCN 1.0
Architecture
RDNA 3.0
TSMC
Foundry
TSMC
28 nm
Process Size
5 nm
4.313 billion
Transistors
28.1 billion
365 mm²
Die Size
346 mm²

Graphics Features

12 (11_1)
DirectX
12 Ultimate (12_2)
4.6
OpenGL
4.6
1.2
OpenCL
2.2
1.2
Vulkan
1.3
-
-
-
5.1
Shader Model
6.7

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