GeForce GTX 980 vs Radeon HD 8990 OEM
We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 980 and 3GB VRAM Radeon HD 8990 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
GeForce GTX 980 Advantages
Released 1 years and 5 months late
Boost Clock has increased by 22% (1216MHz vs 1000MHz)
More VRAM (4GB vs 3GB)
Lower TDP (165W vs 375W)
Radeon HD 8990 OEM Advantages
Larger VRAM bandwidth (288.0GB/s vs 224.4GB/s)
Score
Benchmark
FP32 (float)
GeForce GTX 980
+21%
4981
Radeon HD 8990 OEM
4096
Graphics Card
Sep 2014
Release Date
Apr 2013
GeForce 900
Generation
Sea Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1127 MHz
Base Clock
950 MHz
1216 MHz
Boost Clock
1000 MHz
1753 MHz
Memory Clock
1500 MHz
Memory
4GB
Memory Size
3GB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
384bit
224.4GB/s
Bandwidth
288.0GB/s
Render Config
-
Compute Units
32
2048
Shading Units
2048
128
TMUs
128
64
ROPs
32
48 KB (per SMM)
L1 Cache
16 KB (per CU)
2 MB
L2 Cache
768 KB
Theoretical Performance
77.82 GPixel/s
Pixel Rate
32.00 GPixel/s
155.6 GTexel/s
Texture Rate
128.0 GTexel/s
4.981 TFLOPS
FP32 (float)
4.096 TFLOPS
155.6 GFLOPS
FP64 (double)
1024 GFLOPS
Board Design
165W
TDP
375W
450 W
Suggested PSU
750 W
1x DVI
1x HDMI 2.0
3x DisplayPort 1.4a
1x HDMI 2.0
3x DisplayPort 1.4a
Outputs
1x DVI
4x mini-DisplayPort 1.2
4x mini-DisplayPort 1.2
2x 6-pin
Power Connectors
2x 8-pin
Graphics Processor
GM204
GPU Name
Malta
GM204-400-A1
GPU Variant
Malta XT
(215-0849026)
(215-0849026)
Maxwell 2.0
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
5.2 billion
Transistors
4.313 billion
398 mm²
Die Size
365 mm²
Graphics Features
12 (12_1)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.3
Vulkan
1.2
5.2
CUDA
-
6.4
Shader Model
5.1