Radeon HD 6990 vs GeForce GT 340 OEM
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 1024MB VRAM GeForce GT 340 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 6990 's Advantages
Released 1 years and 1 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 27.20GB/s)
1440 additional rendering cores
GeForce GT 340 OEM 's Advantages
Lower TDP (69W vs 375W)
Score
Benchmark
FP32 (float)
Radeon HD 6990
+892%
2550
GeForce GT 340 OEM
257
Graphics Card
Mar 2011
Release Date
Feb 2010
Northern Islands
Generation
GeForce 300
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1250 MHz
Memory Clock
850 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR3
256bit
Memory Bus
128bit
160.0GB/s
Bandwidth
27.20GB/s
Render Config
24
Compute Units
-
-
SM Count
12
1536
Shading Units
96
96
TMUs
32
32
ROPs
8
8 KB (per CU)
L1 Cache
-
512 KB
L2 Cache
64 KB
Theoretical Performance
26.56 GPixel/s
Pixel Rate
4.400 GPixel/s
79.68 GTexel/s
Texture Rate
17.60 GTexel/s
2.550 TFLOPS
FP32 (float)
257.3 GFLOPS
637.4 GFLOPS
FP64 (double)
-
Board Design
375W
TDP
69W
750 W
Suggested PSU
250 W
1x DVI
4x mini-DisplayPort 1.2
Outputs
1x DVI
1x HDMI
1x VGA
2x 8-pin
Power Connectors
None
Graphics Processor
Antilles
GPU Name
GT215
Antilles XT
(215-0807027)
GPU Variant
GT215-301-A3
TeraScale 3
Architecture
Tesla 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
40 nm
2.64 billion
Transistors
0.727 billion
389 mm²
Die Size
144 mm²
Graphics Features
11.2 (11_0)
DirectX
11.1 (10_1)
4.4
OpenGL
3.3
1.2
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
1.2
5.0
Shader Model
4.1
